So far so good! I'd recommend outlining the circle, or at least the brownish half. Also, if the colors are a little off (may just be my monitor, don't know), transluscent layers can do wonders for color matching if you have the time and patience. I'd also experiment with different rotation angles for the hood logo. There's a lot of empty space. Then again, some little flourishes might fill that more effectively.
OK, I'll stop pretending I have any skill whatsoever now. lol