Did you ask Diablo for permission as well? That is where your raptor model is coming from.
This is a really well done animation - you are, quite frankly, too good an animator to keep copying/reinterprating animations and artworks from other artists. Why don't you try your hand on designing your own characters? "I can't draw" won't get better from not trying to practice it.
Alternatively, maybe ask other artists - especially on FA - about doing cooperative animations with you, them drawing the basic models, you doing the animations. That means fresh and new models designed with the explicit intent of being animated by you. Quite a few people on FA animate that way.
Excellent crush-trample-flick though! Really lovely!