Is Zhang He's series of traditional Chinese painting water towns valuable?

Zhang He's series of Chinese paintings of water towns are of great value. Zhang He is a member of China Calligraphers Association. He studied under Mi Nanyang, a famous calligrapher in China, and Wang Wenxiang, a famous librarian of Chairman Mao. The words are magnificent and the artistic conception is far away, which is commendable. The value is 4,000 yuan per square foot, and the value of Chinese painting water town series is also 5,000 yuan per square foot.