I think it's awesome. A great model, nice cell shading. I wasn't sure about the pitch-black colour (because you can't add any more 'shadow' if you needed to), but after looking at 'RWBY Grimm', it looks like it would fit right in.
Although, in my opinion, the minotaur moves too much during its idle animation; but he might move like this if he's about to fight someone soon after.
By the way, this section is meant more for proper, longer animations; for short loops like this, the Art portal would be better (you can post GIFs there, as you did with the 'ProtoHunter Cannon', although that GIF doesn't loop properly).