A person's calligraphy is very imposing. What idioms can be used to praise him?

Splash ink is an idiom in China, which means painting. In the past, brushes were made of wolf hair or wool, so brushes were brushes. Splash ink is a technique of Chinese painting, called splash ink. Brush ink is also used in calligraphy. Refers to the heroic behavior of men in writing or painting. From Li Rihua's "Bamboo Lazy Painting" in the Ming Dynasty: splash ink skillfully, without writing, such as splashing ears.