Well, I think I can sum this up in just a few sentences. There's some parts where the impression sounds very convincing, but others where it just seems forced. In my opinion, though, you should make more of an effort to form your own style. I know it's tempting to mimic the vocalist when doing a cover, of course— I'd done that for a long time myself— but I'd really like to hear Alton in this cover, whatever that would entail.
