Look at his wittle forked tongue and viciously sharp teeth!
I'm not much of an art critic, but I lurve me some dragons.
I'm sure you've been told this before, but you are an amazingly talented artist.
I know this sounds petty, but the medium-sized egg shell fragment kind of looks...off. And, to me at least, where the dragon's neck and body connect seems strange. So, no perfect score. Sorry. :(
Anyway, bottom line: amazing drawing, I will be extremely disappointed if you don't end up illustrating for novels, or something.
Keep up the good work.