This song
I'm absolutely blown away by the atmosphere you have created with this piece! :D If I close my eyes while listening to the intro, I immediately feel like I'm soaring over a large, grassy highland with rivers, lakes, steep mountains and falls. It's been a long time since a song has been able to do something like that to me. The timbre of the flute is absolutely brilliant, same with the strings and percussion (I love the sudden changes in intensity around 0:42). The clear, thin metal-like percussion just adds another dimension to that- high pitched metal percussion is, in my opinion, always welcome, no exceptions.
Now after that fantastic intro, the less impressive break with percussion and bass was a little disappointing- I was expecting a beautiful, grandiose sort of resolution to that build-up. Eventually the familiar atmosphere returns, with (hopefully intentionally) a hint of heroic struggle from the brass, choir, timpani-like percussion and the overall composition.
You've done a swell job with the stereo field- I can clearly hear it when analyzing the piece, but even though it is pretty much unnoticeable when casually listening to it, it adds so much to the atmosphere.
I hope you realize that you're much, much more experienced and skilled than most of the Newgrounds userbase, so I can't help but praising every aspect of it. Please keep up the fantastic work, and keep submitting!