The only areas which should not be changed are what constitutes the actual facial geometry. If I were more artistically proficient, I would open the right eye and resculpt the lids; straighten the ears; lift the head up a little bit so his neck could show. It is only that the end result should be recognizable. Sorry it took me so long to get back. I was out of electrons and had to get a refill! 
Sorry everyone I have been very sick for a long time and am finally back up on my feet… But any way is this still open??
Please let me know.
Thank you,
Nick