Yang Buzhi

Yang Buzhi (1098–1167) was born in Qingjiang (modern Huai'an), Jiangxi Province, in China.
He is regarded as a master of ink paintings of plum blossoms in the Song Dynasty, and developed techniques which influenced later painters. He "resolved the depiction of flowering plum into a linear system built from brushstrokes and structures adapted from calligraphy".
"Four Stages of Blossoming Plum," circa 1165, is the only surviving work that can be attributed to him with certainty.