Looks pretty good. Don't care for the background any though. Doesn't quite have the energy I'd expect for a Metallica sig either. Still good.
Great use of negative space, but it's too bright for a Metallica sig. Metallica used to be seen as dark and scary back in the 80's. Make it so!
I like it, but something doesn't seem right about it. I don't know what it is, but until it's probably what the people above said. Anyway, it's still a really good image. And my boyfriend thinks you're a God for just making a Metallica stock.