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 Yanzhi's seal. The landscape is interspersed with mountains and rivers, and the mountains are steep or towering at the place where the ink is splashed. The white space highlights the pouring water. This painting looks chaotic, clear in layers, surrounded by mountains and rivers, exquisite and leisurely.