On Baraka...his pants need some darker colors on the other edge where its light (make it look 3d). The face needs some working. The chest needs to show that he chest is sticking out.
Frost. To many basic colors. You used too much of that "pure" blue. Try switching it up and use that blue scarcely but to show vividness.
I'll agree with SMB on that one.
Alot better than what people put out as fakes (these sprites are actually better than fakes out there...lol).