Is Ding's calligraphy valuable?

Yes Ding is a famous painter in China, and his calligraphy is very valuable. Ding distinguished professor of Chongqing Telecom Vocational College, member of China Calligraphers Association (national first-class calligrapher), member of Chongqing Calligraphers Association, president and consultant of Chongqing Shuangqiao Economic Development Zone Calligraphy and Painting Research Association, artist specially recommended by the State Council Guobinli, art consultant of China National Art Network, honorary chairman of China International Writers and Artists Association, signed artist of China Collection Guide Network, protected inheritor of chinese heritage, artist with the most collection value in China, leading figure of contemporary art, and visiting professor of Taipei Palace Museum of Calligraphy and Painting.