One really small detail you might want to look into is the 16x16 : the top and bottom right pixels aren't transparent, and look a little strange on a dark backgrond. Other than that, as I said before on the WIP thread : perfect icon.
No, he doesn't. If you look at it the eyes are facing towards you; if he fliped it that it would be facing to the right of the screen (I'm not referring to the "nose" but the face itself). I'm not really sure how to explain this, my english is kinda limited LOL