I think the sprite looks good. What's the nature of the game? And what language are you writing it in? (This looks like the kind of sprite you see in those javascript type projects.)
Good luck.
Yes this is for a javascript based game, but I'm also working on it for xna for windows 7 devices, right now its in development in HTML5 / FLASH
I willl let you know more as I get more done..
William MC.
PS : Allows looking for help and Im also on PixelJoint forums.