Is the painter He's painting worth collecting?

Painter He's paintings are worth collecting. He's paintings range from 7000 yuan to 10000 yuan per square foot. He Yao Ming is from Guangzhou. Good at calligraphy. The work is naive and natural. He has been selected for the National Book Fair for many times and exhibited in Hongkong, Taiwan Province Province and Japan, and won the third prize of Turpan Calligraphy Competition on the Silk Road in China. Taibai forest of steles, Xishan forest of steles and Hanyuan forest of steles. The paper talks about using ink, thinking about the edge of inkstone and exploring lines.