Visitors work on paintings in Xidi scenic spot of Yixian County, east China's Anhui Province, April 24, 2019. (Xinhua/Ren Pengfei)

Visitors work on paintings in Xidi scenic spot of Yixian County, east China's Anhui Province, April 24, 2019. (Xinhua/Ren Pengfei)

A visitor works on a painting in Hongcun scenic spot of Yixian County, east China's Anhui Province, April 24, 2019. (Xinhua/Ren Pengfei)

A visitor works on a painting in Hongcun scenic spot of Yixian County, east China's Anhui Province, April 24, 2019. (Xinhua/Ren Pengfei)

Visitors work on paintings in Xidi scenic spot of Yixian County, east China's Anhui Province, April 24, 2019. (Xinhua/Zhang Duan)

Visitors work on paintings in Xidi scenic spot of Yixian County, east China's Anhui Province, April 24, 2019. (Xinhua/Zhang Duan)

A visitor works on a painting in Hongcun scenic spot of Yixian County, east China's Anhui Province, April 24, 2019. (Xinhua/Ren Pengfei)

A visitor works on a painting in Xidi scenic spot of Yixian County, east China's Anhui Province, April 24, 2019. (Xinhua/Zhang Duan)

Visitors work on paintings in Hongcun scenic spot of Yixian County, east China's Anhui Province, April 24, 2019. (Xinhua/Zhang Duan)

A visitor works on a painting in Hongcun scenic spot of Yixian County, east China's Anhui Province, April 24, 2019. (Xinhua/Zhang Duan)

Visitors work on paintings in Hongcun scenic spot of Yixian County, east China's Anhui Province, April 24, 2019. (Xinhua/Ren Pengfei)