What were the calligraphy and paintings in Song and Yuan Dynasties? Representative figures and works?

Calligraphy: Su Shi, Huang Tingjian, Mi Fei and Cai Xiang in Song Dynasty were called "Song Sijia". Zhao Mengfu in Yuan Dynasty was also a famous calligrapher.

Painting: Hao Jing, Huang Quan,,, Gu, Zhao Mengfu, etc. Song Huizong is politically weak and incompetent, and he is the king of national subjugation, but he is excellent in painting and calligraphy.