Awesome. Very true to the original and the guitar tones are fantastic. The singer does a damn fine Bruce too.
I'll concur with Steve that the drums, particularly the toms, need a little something but it actually reminds me of how the drums sound on Number of the Beast (which isn't a bad thing).
The vocals are great but there are a couple spots that could maybe use a little pitch correcting (ever so slight). Especially during the harmonies so it gets that nice cohesive blend going on. This stuff is CHALLENGING (I know because I've sang a lot of Dickinson before and my old band used to cover quite a bit of their material) so the fact he got it as good as he did is very impressive but I'd imagine even The Bruce himself had a bit of tuning help in the studio (which seems more likely when you hear their live stuff which can be quite off at times).
The only other thing is, and this may be my headphones, but I was getting kind of a lo fi kind of hiss/lack of crispness. It's like how my last song turned out... just... not crisp. I'm wondering if Soundclouds compression method does something nasty to heavy music like this because a lot of the cleaner stuff doesn't seem to suffer that.
But that really is nitpicky stuff because otherwise I think it's perfect and honestly after not listening to the original for a few years if it weren't for those things I'd probably think it WAS the original.
Absolutely well done and thanks for bringing the METAL!!!
\m/