A man looks at the 'The Three Graces' by Flemish painter Peter Paul Rubens during the media presentation of the exhibition 'Mythological Passions' at Prado Museum amid the coronavirus disease (COVID-19) outbreak in Madrid, Spain, March 1, 2021. REUTERS/Susana Vera

People look at two versions of 'Danae' by Italian painter Titian during the media presentation of the exhibition 'Mythological Passions' at Prado Museum amid the coronavirus disease (COVID-19) outbreak in Madrid, Spain, March 1, 2021. REUTERS/Susana Vera

A man looks at the 'The Three Graces' by Flemish painter Peter Paul Rubens during the media presentation of the exhibition 'Mythological Passions' at Prado Museum amid the coronavirus disease (COVID-19) outbreak in Madrid, Spain, March 1, 2021. REUTERS/Susana Vera

A cameraman films the 'The Three Graces' by Flemish painter Peter Paul Rubens during the media presentation of the exhibition 'Mythological Passions' at Prado Museum amid the coronavirus disease (COVID-19) outbreak in Madrid, Spain, March 1, 2021. REUTERS/Susana Vera

A museum worker sticks out her head before walking past 'The Three Graces' by Flemish painter Peter Paul Rubens during the media presentation of the exhibition 'Mythological Passions' at Prado Museum amid the coronavirus disease (COVID-19) outbreak in Madrid, Spain, March 1, 2021. REUTERS/Susana Vera

Sotheby's Paris employees pose with the 1887 painting of a Paris street scene "Scene de rue a Montmartre" by Dutch painter Vincent Van Gogh which will be presented to the public for the first time after spending more than a century behind closed doors in the private collection of a French family, France, February 24, 2021. REUTERS/Christian Hartmann

Sotheby's Paris employees pose with the 1887 painting of a Paris street scene "Scene de rue a Montmartre" by Dutch painter Vincent Van Gogh which will be presented to the public for the first time after spending more than a century behind closed doors in the private collection of a French family, France, February 24, 2021. REUTERS/Christian Hartmann

Sotheby's Paris employees pose with the 1887 painting of a Paris street scene "Scene de rue a Montmartre" by Dutch painter Vincent Van Gogh which will be presented to the public for the first time after spending more than a century behind closed doors in the private collection of a French family, France, February 24, 2021. REUTERS/Christian Hartmann

Sotheby's Paris employees pose with the 1887 painting of a Paris street scene "Scene de rue a Montmartre" by Dutch painter Vincent Van Gogh which will be presented to the public for the first time after spending more than a century behind closed doors in the private collection of a French family, France, February 24, 2021. REUTERS/Christian Hartmann

A woman walks past a statue of Spanish painter Diego Velazquez outside the Prado Museum during a snowfall in Madrid, Spain January 7, 2021. REUTERS/Susana Vera

Pakistani painter Haider Ali, 40 (R) and his student paint Pakistani truck art on a two-seater Cessna aircraft at general aviation area at Jinnah International Airport in Karachi, Pakistan, December 30, 2020. Picture taken December 30, 2020. REUTERS/Akhtar Soomro

Painter Haider Ali, 40, paints Pakistani truck art on a two-seater Cessna aircraft at general aviation area at Jinnah International Airport in Karachi, Pakistan, December 30, 2020. Picture taken December 30, 2020. REUTERS/Akhtar Soomro

Painter Haider Ali, 40, paints Pakistani truck art on a two-seater Cessna aircraft at general aviation area at Jinnah International Airport in Karachi, Pakistan, December 30, 2020. Picture taken December 30, 2020. REUTERS/Akhtar Soomro

Glass painter Tee Abkornburee paints a goblet at the Thomas Goode gallery in London, Britain, December 22, 2020. REUTERS/John Sibley

A visitor looks at a painting by Russian artist Vasily Kandinsky at the Guggenheim Museum, during a preview of Kandinsky, a retrospective of the pioneering abstract painter's career, in Bilbao, Spain, November 19, 2020. REUTERS/Vincent West

Semi-retired interior painter Wally Rositzki, 68, volunteers at the West CAP Food Pantry in Boyceville, Wisconsin, U.S., October 22, 2020. Picture taken October 22, 2020. REUTERS/Bing Guan

A detail of the tapestry "School of Athens" (L'Ecole d'Athenes) shows Italian painter Raphael (at R) during its unveiling after a meticulous restoration, inside the hemicycle at the National Assembly in Paris, France, September 15, 2020. REUTERS/Charles Platiau

A general view shows the Auberge Ravoux, where Dutch painter Vincent Van Gogh spent his last weeks in Auvers-sur-Oise near Paris, France, July 29, 2020. REUTERS/Christian Hartmann

A chair is seen inside the Auberge Ravoux, where Dutch painter Vincent Van Gogh spent his last weeks in Auvers-sur-Oise near Paris, France, July 29, 2020. REUTERS/Christian Hartmann

People stand in front of the grave of Dutch painter Vincent van Gogh during a ceremony marking the 130th anniversary of his death at the cemetery in Auvers-sur-Oise, near Paris, France, July 29, 2020. REUTERS/Christian Hartmann

A view shows the grave of Dutch painter Vincent van Gogh at the cemetery in Auvers-sur-Oise during a ceremony marking the 130th anniversary of his death, near Paris, France, July 29, 2020. REUTERS/Christian Hartmann

A view shows the church of Auvers-sur-Oise taken from the cemetery where Dutch painter Vincent van Gogh is buried during a ceremony marking the 130th anniversary of his death in Auvers-sur-Oise, near Paris, France, July 29, 2020. REUTERS/Christian Hartmann

Sunflowers are seen on Dutch painter Vincent van Gogh's grave at the cemetery in Auvers-sur-Oise during a ceremony marking the 130th anniversary of his death, near Paris, France, July 29, 2020. REUTERS/Christian Hartmann

A view shows the grave of Dutch painter Vincent van Gogh at the cemetery in Auvers-sur-Oise during a ceremony marking the 130th anniversary of his death, near Paris, France, July 29, 2020. REUTERS/Christian Hartmann

The tree roots identified as part of the location that inspired Dutch painter Vincent van Gogh for his last work 'Tree Roots' (1890) painted shortly before his death are seen in Auvers-sur-Oise near Paris, France, July 29, 2020. REUTERS/Christian Hartmann

Researcher Wouter van der Veen, scientific director at the Institut Van Gogh, shows a copy of the postcard (around 1905-1910) that enabled him to identify the location that inspired Dutch painter Vincent van Gogh for his last work 'Tree Roots' (1890), painted shortly before his death in Auvers-sur-Oise near Paris, France, July 29, 2020. REUTERS/Christian Hartmann

Researcher Wouter van der Veen, scientific director at the Institut Van Gogh, shows a copy of the postcard (around 1905-1910) that enabled him to identify the location that inspired Dutch painter Vincent van Gogh for his last work 'Tree Roots' (1890), painted shortly before his death in Auvers-sur-Oise near Paris, France, July 29, 2020. REUTERS/Christian Hartmann

Gallery workers stand in front of 'Wolken (Fenster) (Clouds (Window))' by German painter Gerhard Richter during a media preview for 'Rembrandt to Richter' at Sotheby's auction house in London, Britain, July 23 2020. Picture taken July 23, 2020. REUTERS/Dylan Martinez REFILE - CORRECTING ARTWORK'S TITLE

A gallery assistant poses as she holds 'Self Portrait' by Dutch master Rembrandt while standing in front of 'Wolken (Fenster) (Clouds (window))' by German painter Gerhard Richter during a media preview for 'Rembrandt to Richter' at Sotheby's auction house in London, Britain, July 23 2020. Picture taken July 23, 2020. REUTERS/Dylan Martinez

A gallery assistant removes a ladder in front of 'Wolken (Fenster) (Clouds (window))' by German painter Gerhard Richter during a media preview for 'Rembrandt to Richter' at Sotheby's auction house in London, Britain, July 23 2020. Picture taken July 23, 2020. REUTERS/Dylan Martinez

A visitors walks in front of 'Wolken (Fenster) (Clouds (window))' by German painter Gerhard Richter during a media preview for 'Rembrandt to Richter' at Sotheby's auction house in London, Britain, July 23 2020. Picture taken July 23, 2020. REUTERS/Dylan Martinez

Visitors walk in front of 'Wolken (Fenster) (Clouds (window))' by German painter Gerhard Richter during a media preview for 'Rembrandt to Richter' at Sotheby's auction house in London, Britain, July 23 2020. Picture taken July 23, 2020. REUTERS/Dylan Martinez

A gallery security guard stands in front of 'Wolken (Fenster) (Clouds (window))' by German painter Gerhard Richter during a media preview for 'Rembrandt to Richter' at Sotheby's auction house in London, Britain, July 23 2020. Picture taken July 23, 2020. REUTERS/Dylan Martinez

A visitors walks in front of 'Wolken (Fenster) (Clouds (window))' by German painter Gerhard Richter during a media preview for 'Rembrandt to Richter' at Sotheby's auction house in London, Britain, July 23 2020. Picture taken July 23, 2020. REUTERS/Dylan Martinez

A man takes a picture as he stands next to the painting "Negotiating table. Problem 1" by painter Sergei Ovsepyan during a press preview of the exhibitIon "NotForever. 1968-1985" at the State Tretyakov Gallery in Moscow, Russia July 6, 2020. REUTERS/Maxim Shemetov

People stand in front of the painting "Portrait of Leonid Brezhnev" by Soviet painter Yuri Korolyov during a press preview of the exhibitIon "NotForever. 1968-1985" at the State Tretyakov Gallery in Moscow, Russia July 6, 2020. REUTERS/Maxim Shemetov

Khadeeja Bisharat, a Palestinian artist, is embraced by her daughter Remas in Jordan Valley in the Israeli-occupied West Bank June 18, 2020. Picture taken June 18, 2020. REUTERS/Raneen Sawafta

Khadeeja Bisharat, a Palestinian artist, stands with her daughter Remas as a view shows the Jordan Valley in the Israeli-occupied West Bank June 18, 2020. Picture taken June 18, 2020. REUTERS/Raneen Sawafta TPX IMAGES OF THE DAY

Khadeeja Bisharat, a Palestinian artist, draws in Jordan Valley in the Israeli-occupied West Bank June 18, 2020. Picture taken June 18, 2020. REUTERS/Raneen Sawafta

Khadeeja Bisharat, a Palestinian artist, makes cheese with her mother-in-law in Jordan Valley in the Israeli-occupied West Bank June 18, 2020. Picture taken June 18, 2020. REUTERS/Raneen Sawafta

Khadeeja Bisharat, a Palestinian artist, has coffee with her parents-in-law in Jordan Valley in the Israeli-occupied West Bank June 18, 2020. Picture taken June 18, 2020. REUTERS/Raneen Sawafta

Khadeeja Bisharat, a Palestinian artist, milks a goat in Jordan Valley in the Israeli-occupied West Bank June 18, 2020. Picture taken June 18, 2020. REUTERS/Raneen Sawafta

Khadeeja Bisharat, a Palestinian artist, paints a conflict-inspired artwork as her daughter Menas watches her in Jordan Valley in the Israeli-occupied West Bank June 18, 2020. Picture taken June 18, 2020. REUTERS/Raneen Sawafta

Pakistani truck-art painter Haider Ali, 40, poses for a photograph next to a mural, depicting George Floyd, who died in Minneapolis police custody in U.S., in Karachi, Pakistan, June 12, 2020. REUTERS/Akhtar Soomro

Pakistani truck-art painter Haider Ali, 40, touches up a mural depicting George Floyd, who died in Minneapolis police custody in U.S., in Karachi, Pakistan, June 12, 2020. REUTERS/Akhtar Soomro

Pakistani truck-art painter Haider Ali, 40, gestures as he speaks with Reuters next to a mural he painted, depicting George Floyd, who died in Minneapolis police custody in U.S., in Karachi, Pakistan, June 12, 2020. REUTERS/Akhtar Soomro

A picture of French painter Claude Monet, is seen in his house at the reopened Claude Monet house and foundation after restrictions to prevent the spread of the coronavirus disease (COVID-19) were eased, in Giverny, France, June 9, 2020. REUTERS/Benoit Tessier

Artwork by Spanish painter Salvador Dali waits to be hung as the Reina Sofia museum prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 3, 2020. REUTERS/Susana Vera

A man looks at the masterpiece 'The Body of Christ Supported by Angels' by the Flemish painter Bartholomeus Spranger at Rijksmuseum, which reopened after the ease of the lockdown measures during the coronavirus disease (COVID-19) outbreak, in Amsterdam, Netherlands June 1, 2020. REUTERS/Piroschka van de Wouw

A man points at the masterpiece 'The Body of Christ Supported by Angels' by the Flemish painter Bartholomeus Spranger at Rijksmuseum, which reopened after the ease of the lockdown measures during the coronavirus disease (COVID-19) outbreak, in Amsterdam, Netherlands June 1, 2020. REUTERS/Piroschka van de Wouw

Raffle organizer Peri Cochin, wearing a protective face mask, poses with the painting "Nature Morte, 1921" by Spanish painter Pablo Picasso after the charity raffle official draw to designate the winner of the Picasso oil painting for 100 euros at Christie's auction house in Paris, May 20, 2020. REUTERS/Charles Platiau

Raffle organizer Peri Cochin, wearing a protective face mask, poses with the painting "Nature Morte, 1921" by Spanish painter Pablo Picasso after the charity raffle official draw to designate the winner of the Picasso oil painting for 100 euros at Christie's auction house in Paris, May 20, 2020. REUTERS/Charles Platiau

Raffle organizer Peri Cochin, wearing a protective face mask, poses with the painting "Nature Morte, 1921" by Spanish painter Pablo Picasso after the charity raffle official draw to designate the winner of the Picasso oil painting for 100 euros at Christie's auction house in Paris, May 20, 2020. REUTERS/Charles Platiau

Raffle organizer Peri Cochin, wearing a protective face mask, poses with the painting "Nature Morte, 1921" by Spanish painter Pablo Picasso after the charity raffle official draw to designate the winner of the Picasso oil painting for 100 euros at Christie's auction house in Paris, May 20, 2020. REUTERS/Charles Platiau

Raffle organizer Peri Cochin delivers a speech as the name of the winner of the painting "Nature Morte, 1921" by Spanish painter Pablo Picasso appears on the screen during the charity raffle official draw to designate the winner of the Picasso oil painting for 100 euros at Christie's auction house in Paris, May 20, 2020. REUTERS/Charles Platiau

A cameraman, wearing a protective face mask, stands in front of the painting "Nature Morte, 1921" by Spanish painter Pablo Picasso before the charity raffle official draw to designate the winner of the Picasso oil painting for 100 euros at Christie's auction house in Paris, May 20, 2020. REUTERS/Charles Platiau

A visitor looks at paintings of late Norwegian painter Edvard Munch in the Kunsthaus Zurich art museum after its re-opening, as Switzerland eases the lockdown measures following the coronavirus disease (COVID-19) outbreak in Zurich, Switzerland, May 15, 2020. REUTERS/Arnd Wiegmann

An artist makes a sketch of the painting "Apostle Simon" of late Dutch painter Rembrandt in the Kunsthaus Zurich art museum after its re-opening, as Switzerland eases the lockdown measures following the coronavirus disease (COVID-19) outbreak in Zurich, Switzerland, May 15, 2020. REUTERS/Arnd Wiegmann

Visitors look at the painting "Apostle Simon" of late Dutch painter Rembrandt in the Kunsthaus Zurich art museum after its re-opening, as Switzerland eases the lockdown measures following the coronavirus disease (COVID-19) outbreak in Zurich, Switzerland, May 15, 2020. REUTERS/Arnd Wiegmann

A painter walks in Catania, as Italy begins a staged end to a nationwide lockdown due to the spread of the coronavirus disease (COVID-19), Italy May 4, 2020. REUTERS/Antonio Parrinello