Mother drives revival of forgotten art form

From a hobby to a business, a retired teacher and her daughter sell their works at home and abroad

From a distance, it looks like a normal traditional Chinese ink wash painting, but up close, it appears to be a piece of embroidery stitched with silk thread.

"This is feather art," Xu Nannan, the master of the artwork, said at her studio in the southwestern municipality of Chongqing.