First, i'd like to say i'm rather happy to see that you skin a custom skin, maybe you used the original skin or not, but its always fun to skin a brand new model, if you be the first skinning it, there is no reference, only those weird triangle schemes, it's always here the hardest to skin, at the default status, where you take your clay and model your skin into something bad/good. there are omnipresent highlights and shadow, try doing more shadows, but at concentrated points, not everywhere. his face is blank add shading with a small brush here. take note that there is bones and noses, and cheeks and fat, all those make very high shading values.
heck, i dont know from what that got merged, but i don't wanna know.
the hairs are horrible you did a first layer of peanut butter-like style and added few brown crack lines. open up the DH uv map ( skin file ) and look how the hairs are made, or open up arthas and take a look too. the hairs are important, take care of them.
your skin looks like very blank, other from the blue, add more stuff, or add fur, but add something, something noticeable
beauty : 1/5 look above
effort( most important thing) : i think it be somewhat high, you took a brand new model, and probably dont know how the skin wraps around this, its a good initiative to skin new models. also you seemed to love doing it, its noticeable by MINOR shading, and some stylizing of it, you added orange hairs.
concept: i think it's a concept with potential, the art itself may not have potential, but that big furry ball with a megaman gun and a shield looks funky
improve the shading, its very very important skill to learn, do all what you can to futher learn this skill and pratice a lot if you love skinning wich i think you really do.