Good,clean work, but maybe try lengthening the arms a tad?

Hah, cool. I like how you portrayed the glasses. I think you could add a skin colored pixel where the glasses meets the ear. Currently, it goes off of his face. Also, the dark outline where his chin meets his neck isn't bad, but I wonder how it would look with a dark skintone to suggest more of a neck. Anyway, cool self-likeness!