It seems really flat, there is no proper shading to make him look really. His feet look quite boxy, as do his legs, but I don't know if that's the style your going for. Face looks cool though.
I can not see what he is wearing, I suggest you upper the contrast. If you play a bit creative with it, it will still look like a black suit, even though you will need more bright colors to define it :)
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The belt looks kind of weird, but this is awesome!