Is Zhang's calligraphy valuable?

Zhang's calligraphy is very valuable. According to relevant public information, Zhang is the executive vice president of the Capital Painting and Calligraphy Institute. In August, 20021,he participated in the 3rd China Painting and Calligraphy-National Art Exhibition, which was hosted by Beijing Hongyanxuan Culture Media Co., Ltd. and hosted by the Film and Television Celebrity Painting and Calligraphy Creation Base. Chinese name Zhang Ji, Executive Vice President of China Hanyidu Painting and Calligraphy Institute.