Last month, I released my comic on webtoons, and to add an extra layer of polish, I made a new cover, one which I liked so much that I changed the tapas version to it. But now, I realize that I don't like it much, and it's pretty sloppy. So, for the sake of making the tapas and webtoons versions of my comic distinct, I wanna make a new cover.
Here is the current cover:

Here are some concepts:
sketch1

sketch 2

sketch 3

Which do you prefer? Also, if it's not too much to ask, it'd be a great help if I got some extra ideas for the covers, cuz I'm really not too sure how to make one, and I've really just been winging it.