Sounds great, my only issue is that the drums sound a bit quiet... consider making the timpani/bass drum a bit wetter and in the 3:00-4:00 area with hits, moving between the first and fifth or first and third has a great feel to it as opposed to sticking on the first. The snare rim-hits around 1:00 should either be a bit louder or perhaps, consider trying them on the drum itself.
You do a great job of making clean motion between the various motifs, and the piece moves well, although some more counter-melodies could have been used. Instrumentation is okay, although I didn't hear much woodwinds. The clarinet around 2:00 is nice, but oboe and 8va would perhaps offer a clearer sound. When you get to the build up around 2:45ish, the range seems fine, but once again, oboe might be better.
Which trumpet were you using for that part near the end? If you were using solo trumpet 1, consider trying solo trumpet 2... it has a timbre that is more fitting for epic songs. Alternately, I have had luck as of late with the 2 trumpet VIs.
There's a fair diversity to the piece, and I think you did a good job with expressing a solid feeling with it.
Best of luck in the competition!