Great piece! I love the exaggerated perspective from the waist down. I don't understand why you didn't follow the same perspective from the waist up. If you did, the forward arm and fist would look noticeably larger than the arm back, so mixing both perspectives in the same figure makes him look somewhat strange. But all that is just a minor critique. The rule of cool trumps all!
Lookin good, anyone know what the characters next to him mean? Looks like you might have pulled a little inspiration from "Black Dynamite", that is the first thing that comes to mind with this cell paint style you used.