Photo taken on Sept. 4, 2021 shows inside painting works of Wang Ziyong at a museum featuring inside painting in Taocheng District of Hengshui City, north China's Hebei Province. Inside painting, or inner painting, is a traditional Chinese art form. (Photos: Xinhua/ Jin Haoyuan)

Photo taken on Sept. 4, 2021 shows the different stages of the inside painting creation at a museum featuring inside painting in Taocheng District of Hengshui City, north China's Hebei Province. Inside painting originally involves tiny snuff bottles which have pictures and calligraphy painted on the inside surface of the bottle.

Wang Ziyong creates inside painting works at a museum featuring inside paintings in Taocheng District of Hengshui City, north China's Hebei Province, Sept. 1, 2021. Snuff bottle paintings are produced by manipulating a specialized brush through the neck of the bottle.

Wang Ziyong and his apprentices create inside painting works on the inside surface of snuff bottles at a museum featuring inside paintings in Taocheng District of Hengshui City, north China's Hebei Province, Sept. 1, 2021. The process of painting, which is totally reversed inside the bottle, requires absolute precision from the artist.

Wang Ziyong (R) directs an apprentices to create inside painting works at a museum featuring inside paintings in Taocheng District of Hengshui City, north China's Hebei Province, Sept. 1, 2021. Wang Ziyong, 52, an inside painting craftsman, studied inside painting with his father Wang Ruicheng since childhood.

Wang Ziyong creates inside painting works on the inside surface of a bottle at a museum featuring inside paintings in Taocheng District of Hengshui City, north China's Hebei Province, Sept. 4, 2021. After graduating from college, Wang returned to Hengshui City and devoted himself to the artwork.

Wang Ziyong creates inside painting works at a museum featuring inside paintings in Taocheng District of Hengshui City, north China's Hebei Province, Sept. 4, 2021. Thanks to years of practice, he quickly developed his own style.

Wang Ziyong creates inside painting works at a museum featuring inside paintings in Taocheng District of Hengshui City, north China's Hebei Province, Sept. 4, 2021. He also developed different styles to create inside painting, not only inside snuff bottles, but also inside pencil vases, crystal balls, tea sets and folding screens. In 1995, he gave up the traditional workshop-style production mode of inside painting and established a modern enterprise, integrating development, design, production, processing and sales of the artwork.

Wang Ziyong (R) introduces inside painting works at a museum featuring inside paintings in Taocheng District of Hengshui City, north China's Hebei Province, Sept. 1, 2021. In 2003, with the help of his father, Wang founded a museum in Hebei themed on inside paintings, showing the historical development and creative process of the art. In 2006, inside painting was added to the list of national intangible cultural heritages.

A staff member arranges inside painting works at a museum featuring inside paintings in Taocheng District of Hengshui City, north China's Hebei Province, Sept. 2, 2021. In 2012, Wang Ziyong was named the inheritor of provincial intangible cultural heritage projects. During all these years, Wang has won many prizes with his innovative artwork, and offered training to 38 apprentices, trying to make this traditional skill shine a new light. "I hope more people can feel the charm of Hengshui inside painting in the future," Wang said.