His claws should extend further up into his forearm so that when he's resting his arms for support his doing it on his claws and not on the flesh section of his arm. Other then that the only thing that would make this awesome picture even better,is if you included is tail.
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:origin()/pre11/beee/th/pre/f/2008/311/a/d/fiend_by_catwell.jpg)
All the monsters without any eyes freaked me out, reminded me of the Alien