Which painting is worth collecting, the painter Zhang Yonghong or the painter Chen Dapeng?

Zhang Yonghong. Chen Dapeng, director of China Calligraphy and Painting Research Institute, member of Beijing Calligraphy and Painting Association, academician of China Painting Academy in Cao Zhou, Zhang Yonghong, native of Huaibei City, Anhui Province, member of China Calligraphers Association, executive director of China Calligraphy History Society, vice president of Anhui People's Congress Calligraphers Association, chairman of Huaibei Calligraphers Association, honorary president of Nanyang Calligraphy and Painting Institute in Henan Province. In contrast, Zhang Yonghong's paintings are worth collecting. Painting is the art of copying nature by hand on a two-dimensional plane.