Good, and nice idea

. Naga for instance could find a use for it. Yet there are a few problems:
- why does it alternatively have a cobra and normal serpent head. It just doesn't look right.
- several anims look weird: the stand anims especially, I think his head should almost always be raised like in the stand ready anim (and in the stand anim he should then be opening his jaws in the way snakes do when they want to look threatening). Secondly, often there is a part of his body that is not moving so it looks weird.
- a darker green would have been better I think.
So nice model, but fix a few things and it'll be perfect.