Zhang Yu's "Two Poems on Paintings" on paper, 29X123.9cm, collected by the Palace Museum, Beijing

  "Two Poems on Paintings" is Zhang Yu's representative work in cursive script. His poems are clear and elegant, and his calligraphy is powerful and powerful. It can be regarded as a masterpiece of integrated writing. Ni Yunlin called his poetry, calligraphy and painting "the first in Taoism".