What is the price of Chen Yichun's painting?

Dr. Chen Yichun is currently the president of China Painting and Calligraphy Institute, the president of Central Painting Academy, a professor of South China University of Technology, the director of China Painting and Calligraphy Research Center, and a distinguished researcher of China Academy of Art and China Academy of Social Sciences.

He has created 24 large-scale China paintings and calligraphy works for Zhongnanhai and the Great Hall of the People, such as Song of the Three Gorges, Spring Breeze, Spring Blossoms, Warm Spring, Riverside Scene at Qingming Festival, Morning Wan Li, Jasper Brilliant, and Wan Li Scene in Xiong Feng, some of which are hung in important positions.

A pair of eight-character couplets is about 1000 yuan.