Nice!
Those drawings are pretty darn good! Let me go by order...
The only real flaw with the first one was how Aerodactyl's right wing seemed off; or rather not anatomically corect with its left wing. Otherwise, the rest of your art is great and, I don't know how to say this...but...it's t3h SuPah kaWAii! Just kidding there

, but the rest really are good, whether I say it like a n00b or not.
The Milotic drawing was very good, and the shading was excellent! I guess I really don't have much constructive criticism on this one...
Keep up the good work!~