How much is Cao Baolin's calligraphy and painting worth?

Calligraphy and painting works are generally calculated in square feet. There are also different prices in the author's early or mature period. There are also differences. For example, my teacher's work: Runge per square 1500 yuan (in Beijing). In Wanzhou, Chongqing, a four-foot landscape only needs 1500 yuan. Someone asked for a four-foot peony (good at it) and paid 1800. So the job you are talking about depends on whether it is mature or not. No, it's the kind of calligraphy he is best at. There is also calligraphy, which he is also good at, and it is also a boutique.