Please PM me on imunchie.com/jacob and I will send you more expressions to play with. Lets also try to do a different color in the background so that there is a better contrast between the icon and the character.
maybe you should attach the original file if you want an icon with your caracter ... even i did it by my self (not so hard) and i was first using it, you should ... feel free to ask for anything you would to see by me. thanks for feedback and direction. Luca.