I'm new and could you guys look at my sprites

[LeleleleMAXIMUM]

Well, see, it's okay to make sprites.
But he asked for constructive criticism, which means he wants us to help him improve.

And what we're saying is he won't improve unless he does custom or heavier editing than what he has shown.

It's like asking how to be a better painter, and then showing us a copy of the Mona Lisa with a couple of crappy brushstrokes on top.