This is an NGADM 2015 review.
I remember being damn impressed at your intro during judging. It's just so massive and well mixed. Coming from listening to some two steps from hell recently, I can really say that there isn't much better than well mixed orchestral percussion. It's a thing of beauty i tell ya.
This particular aspect of mixing gets a bit muddy when you introduce your rock percussion though, in my opinion. The snare and kick are so thin and lacking in impact compared to the previous orchestral percussion that it quite detracts from the furious and intense nature of the song. Most of the issue is that the kick and snare are too quiet. At the very least, they're nice and bright, so they're still audible. Just not very strong.
The composition and arrangement of the song is pretty great. You're using some simple stuff in most of it but they're tricks that work extremely well. The decision to include guitar is excellent for the kind of mood/theme you're going for. Not sure about the leaving synth pluck around 1:05 alone, though - it sounds good, but I think you'd have done well to lower the filter envelope on it, it's just a bit resonancey for the rest of the song... but honestly that's my opinion :P there's nothing inherently offensive about it.
Anyway, this one is an epic - it's awesome. I think there are some minor mixing issues that weaken the song in the second half, but it doesn't detract from it too much. Good stuff.