great feel, but I think there are some things missing.
First off, the intro and much of the song feels void of bass. Consider some marcato contrabasses or something to that nature to juxtapose the contrapuntal nature of the other marcato strings by having a steady beat, or just providing a nice bass to everything. I also think you should add some tremolo strings- I find the 10 viola trems to be great. I hear a little at the end, but you could use them so much more than that... if you have time at some point, I can show you an example from a game I am working on now.
The beginning is nice, but lacking in a beat and steady tempo... I think some more drums could help, maybe a snare or tenor. Also, some cymbals or gongs can accent the hits. The strings doing their thing is sweet.
The use of auxiliary percussion in this is great, and I feel that was the main focus of this, and if it was, you did a great job in that regard (reminds me a lot of Stecho with their love of aux and ethnic perc). In fact, that makes it sound a bit like the Age of Mythology battle music, which is pretty sweet stuff (steve rippy if I recall).
When you have the horns doing low notes at 0:49 to the end, I was expecting at the very least a crescendo and build up into something, but that did not happen. I think perhaps you could have extended the piece or worked on bringing that buildup somewhere more effective... it just kinda... dissipates... like a Romulan warbird cloaking. The drums there could also use a bit more variation in their rhythm- things like grace notes and triplets are fantastic on drums.
Drop me a line if you have time on skype, I'd be glad to show you some stuff I've been working on up this vein that might give you some ideas. :)
Overall a good cinematic piece.
Keep compos(ed/ing)!
-Samulis