A reporter watches Zhang Daqian's work during the preview of the solo exhibition, Zhang Daqian: The Master in Hong Kong, south China, Oct. 11, 2019. In commemoration of the 120th anniversary of Zhang Daqian's birthday, Sotheby's presented the exhibition From Oct. 12 to Nov. 9 at Sotheby's Hong Kong Gallery. The exhibition features nearly 60 paintings sourced from the artist's family and private collectors around the world. (Xinhua/Li Gang)