Looks sweet mate, love the detail and shading. Also the scratches at the back of the head are sweet, although It does look slightly empty at the back. As Kaszanas said, maybe an emblem of some kind? I'm not sure if it would ruin it though. moving all that out of the way I really like it personally, I'd give it a 9/10 oohh haha.. I see what you did there, making the mask look 3d with the shadow on the chest... Nice work mate.