Ooh, nice take on the character. Has a grafitti-ish take to it, as opposed to the original cutesy japanese original style it beared. Of course, that's not to say this one isn't cute, either; it certainly still retains that cutesy quality. Though it's a bit rough in places, here and there, skirting the line between pixel art and oekaki, I still dig it, either way. Great job!
Love the hair!