I think you do kinda have a specific style but maybe just try adding a bit more emotion in the eyes and try different line widths, shading, backgrounds, exc, and implant the elements you end up liking from those tests into a final style? Pretty much just experimentation

Try doing/practicing realisim.

There's a saying in art that "you have to know the rules before you can break them." It's certainly true, if you're able to draw something in a realistic fashion you can stylize it much better.

Aha, the wording in this comment is terrible, I apologize. My mind's not very focused right now. x_x I hope you can (somewhat) get what I'm trying to say here-

^ Gah rereading my comment now, it's just... hold on lemme try again lol

Basically, you'll be able to drum up an artstyle better if you practice realisim. Drawing something realistically forces you to get a better grasp on the anatomy of what you're drawing, and having a better understanding of something's anatomy lets you better stylize whatever of its features however you like.
(This comment's not too good either... tbh you'd probably be better off looking at general art advice on places like deviantART and such)

Re: THANK YOU!!<3