Mostly practice. But if you mean like, to try to change your style, I can't exactly help with that. You can't force a different style, but you can try different things! But even I need to improve some things. But yea, just practice most of the time. I don't have any art tips, because I really don't know how to explain some of that.

Probably latebut, i looked quick at your art and the only thing mocking me is the shoulders, try to make them more round. Also (thats a thing i also need to do) try to make clothing more wavy and baggy. It makes it lol netter and more realistic.

do practice the same thing practice different things thats how you'll grow