This seal is-Five Clouds (from left to present, Wu Yun).
Wuyun
[Qing]No. Yu Tao, Shi Hu, Lishui, Jiangsu. Exquisite carving, all the French posts and stones are ingenious. There are two small monuments in Lishui, both carved on clouds, which contain Wang Xizhi's calligraphy. He is the author of Jiangning County Records.
I don't know if it's this guy