Give more details, man. You can't just ask for help "hey, someone help with art, i suck at drawing" lol. How you post a request can be the difference between you waiting a few days for help or not getting any help at all.
Is it gonna be paid or unpaid? Do you want the movie poster look or a simple logo on a background? Do you want colors, shading, specific poses, angles.. etc.? These types of questions help give a sense of what the artist is gonna get into, making it a more proper request.
