As a movie poster, I think we need to wait until MJ can make you a poster with multiple such characters interacting, or at the very least present them with more situational context to trigger more curiosity. Nothing wrong with how are rendered, but individually they don't make me want to read anything to discover who are the pro/antagonists.

Having said that, might be way faster to provide these as inputs on Airtasker and throw few hundred bucks to a 3rd world artist to entangle these figures in a more compelling setting.