An art expert introduces the artwork "Inspiration Hivernale" by Chinese artist Chu Teh-Chun as it's estimated to fetch US$2.57-3.86 million at a preview of Sotheby's Spring Sales in Hong Kong Thursday, March 31, 2011. Sotheby's Hong Kong Spring Sales 2011 will be held from 1 to 8 April. Over 3,600 lots with a total estimate in excess of HK$2.7 billion or US$344 million will be on offer. (AP Photo/Kin Cheung)