Now this depends entirely on the effect you are going for - there is a great visual history of comic and serious dragons with tiny or undersized wings to be sure - but from a flying perspective those wings won't get that dragon off the ground. An interesting comentary on that is in the Two Towers dvd special where a WETA director is talking about the making of the Nasguls - the flying steeds of the 9 riders in LOTR. They were going for the fear factor and wanted their bird to fly convincingly.

So this isn't a critique really - it's more a point to help you hone your intentions

You're making good progress. Looking forward to seeing the head.