HmmMmmmMm...
Well, i liked the drawing style you got there. But i guess it would need a bit of imporovement. I know that self-drawed graphics aren't those easy one task's to have, but if you manage to put it more effort / train more drawing, i would guess that i would like it even more.
But hey, giving you 6 ouf ot 10 stars is not that bad either, just train bit more your drawing and we are good to go!
Keep it up!