I like it. It's great art. I've never seen YuGiOh but he looks pretty ominous with his eyes like that in that art. I think you should use it in your signature, it suits your avatar.
^Please give real CnC please. I think this is probably one of your best sigs to date. Trying with the lighting would make the sig more comfy in my opinion. It is rather dark in most parts. There might be too much purple on Yugi's face, I personally think. Good job altogether though. =D