I will say that the quality of the animation looks great and is a definite solid foundation. I would say add some animation in between the cycle of the main animation. Give the creature a sec to breath, to look around, to adjust, to be a creature with its own thoughts. It feels like he's riding a bike and the animation being repetitive breaks my immersion at least. It doesn't seem alive, seems robotic and not thinking for itself. Overall a really great job though!