Are the paintings of Dongtai Sun Guoxiang valuable?

Worth some money. According to the information about Sun Guoxiang's paintings, Dongtai Sun Guoxiang's paintings are valuable. Sun Guoxiang, whose name is Yunshan andNo. Quan Weng, is from Lao Quan. Graduated from art education department of Harbin Normal University. Beijing, Tsinghua, Cheng Zhenguo, Zhangyan, Dongshan Water Advanced Research Class. Participated in calligraphy exhibitions in various provinces and cities since 1980s. Participated in many Sino-Japanese calligraphy exchange exhibitions, Niigata City, Hyogo Prefecture, Chiba Prefecture, etc. He went to Sichuan and Zhejiang calligraphy exchange exhibitions successively.