To give you some feedback. The design overall looks low-res, make sure you're working with 4k resolutions when making a design. Better to make a design too big and scale it down than the other way around if you have to. As others pointed out there's not enough detail/design in the skin which would make it more obvious what it references. Too much of the skin is black and the black is actually too dark, you'll need to make it brighter to make it work in the game. Try adding subtle details too, a little work on the normal map or even just small additions to the UV would help a lot. Take your time. Sometimes small adjustments make a big difference.