Participants wearing traditional costumes of Yi people pose at a beauty contest during the Torch Festival in Liangshan Yi autonomous prefecture, Southwest China's Sichuan province, Aug 9, 2015. The Yi ethnic group, with a population of more than 7 million, is mainly distributed over the provinces of Sichuan, Yunnan and Guizhou, and the Guangxi Zhuang autonomous region. The festival, which usually falls on June 24 in the lunar calendar, is the biggest festival of the Yi people. [Photo/China News Service]