Working staff from Sotheby's present an artwork by Ding Yanyong valued at 1.6 million to 2.2 million Hong Kong dollars (about 206,240 to 283,580 U.S. dollars) in Hong Kong, south China, March 13, 2013. Sotheby's 2013 spring sales of fine Chinese paintings will be held on April 5 in Hong Kong. Over 300 pieces of artworks with a total value of more than 130 million Hong Kong dollars (about 16.6 million U.S. dollars) will be on display. [Photo:Xinhua/Chen Xiaowei]