Zhang Daqian (1899-1983), formerly known as Zhengquan, later renamed Yan, with the word Jiyan, and the name Daqian, a calligrapher from Neijiang, Sichuan. He is omnipotent in painting, calligraphy, seal cutting, and poetry, combined with painting style, craftsmanship and writing. It is praised as "Oriental Pen". Seal: Zhang, Daqian. In the painting, there are towering mountains and rocks, ridges and ridges, with a clear sense of hierarchy, waterfalls in the mountains, pine trees are tall and tall, a few thatched huts are located at the foot of the mountain, and an old man on the rock wall is looking into the distance, very comfortable.