Just a suggestion - the lower part of his cheeks need to be hollower to match the original. I'd also tilt the corners of his eyes up a little bit. The bulb of the nose needs to go down one click. The chin needs to be slightly smaller - perhaps not quite as wide.
Well, with it coming up to Christmas, I wanted to give you all a small gift. And as I'm not good with custom content.. Shane came into exsistence. I hope you like him.