What is the calligraphy level of the skilled Badashanren in Qing Dynasty?

In recent years, many scholars have studied the characteristics and styles of Badashanren's calligraphy, and there are different opinions. It is not clear where he studied. Some people say that they studied under Dong Qichang and Wang Chong, but there is no conclusion yet. According to the research of relevant researchers, the original work was greatly influenced by Ou Yangxun, followed by Dong Qichang's running script, and then turned to exaggeration techniques. After several changes and explorations, they gradually formed their own unique style. Badashan people have their own poems, written in many paintings. Sometimes I feel that painting is insufficient, so I use poetry to make up for it, thus achieving the artistic conception of painting. From his calligraphy, we can see his distinctive personality and strong personal color. His pen is simple, without ups and downs, round and thick, tepid and dry, much like the words drawn by strokes. The calligraphy layout of Badashanren has its own beauty. Through the moderate contrast between the left and right sides of the intensive calligraphy layout, a strong visual conflict is formed, which immediately attracts the reader's attention and makes him unforgettable. This writing layout has been used to this day. His cursive script is like running water, simple and elegant, extraordinary and free from vulgarity, reaching the realm of silence and emptiness.