People take pictures of images painted on a tree hole by Wang Yue in Shijiazhuang, Hebei province, March 13, 2013. Wang Yue, 23, has painted on 15 tree holes at a street in her hometown after her first try in January. Wang came up with the idea for her college graduation project, inspired by street graffiti arts and the bare tree holes in various shapes in her neighbourhood. REUTERS/Pillar Lee (CHINA - Tags: SOCIETY)