Two boys watch the paper-cutting artwork of double happiness by Zhang Zhuquan, a folk artist of paper-cutting of Tujia ethnic group, at the exhibition of Zhang Zhuquan personal paper-cutting artwork, where some 60 variously-designed double happiness paper-cutting and paper-carving artworks were on display at the Guiyang Art Gallery, in Guiyang, southwest China's Guizhou Province, October 17, 2009. [Xinhua]