Which calligrapher has been imitating others before and then creating a unique style?

It's Zheng Banqiao. I like calligraphy very much, and I even draw on my legs when I sleep. I accidentally scratched my wife's leg once. The wife said, "Everyone has legs (body). Why do you always write about other people's legs (bodies)? " The speaker has no intention, but the listener has intention. Since then, Zheng Banqiao has made great efforts to innovate and created the famous "Banqiao Style".