my first real attempt at graffiti

well i drew it on a peice of paper
but i didnt have anything to color with
so i just scanned it and then colored it on the
paint program

quite frankly i suck on paint so its not that good
and compared to the other entries in this category
this is clearly not the best but tell me what you think
and tell me what i could do differently to make it any better
comment?