somehow, I'm only seeing a Yoshi with wings...but that's just me. I like the neck, and I agree that the end of the tail seems a bit out of place, maybe if you replaced it with something heavier looking. good build.
He looks like he's playing an invisible piano. You should build him one! I really like the use of the repeating gray handle as a sort of spine. It creates a very "Dragony" shape. Looks like a real skeleton under the scales. I am compelled to agree with Mr. Deus however. The tail does not live up to the rest of the lizard. That last tail segment looks "Skinny". Maybe if the whole tail were smooth up to his hind legs? I guess you can't do the banana thing with this guy. Dragons like this offer are challenging shapes that’s for sure. I like how aggressive both you and Deus are in your approach to the subject. Attack!