you mean the grey part? why don't you do it yourself. use the polygon lasso tool and mess around with it. Honestly, it's like you're not even chopping your own chop...
Note to other members, do not do any other mods for him after this painting. He needs to learn how to chop on his own, or else he will be just stealing other peoples' work (I'm on it, but I think you should mess around with whatever program you're using a little, and try to do it for yourself before you come to us for help).
