Their heads seem a bit to small
Yah I know
You need to work on your proportions, but besides that these are pretty good, albeit a bit messy
The ones I can actually identify seem good though why do all of them literally look like you were too lazy to erase so you scribbled over?
I know I’m a bit late, but I think if you work on your proportions and coloring a bit, your work will be really solid! Your style seems very fluid, I can see it lending itself well to drawing stylized action.
The proportions need work, but other than that, they're pretty great.
Believe it or not my art has gotten a lot better since I posted this