Enjoying the thrill of power? ;)
I'd really enjoy a bit more on the harp volume- if you have close mics, add those. Harp close mics reduced a little in volume added to the mix sound fantastic. Also, your strings (I reckon you used the expressive patch) seem to have a bit too much delay at times with chords. Also, some more reverb wouldn't kill on some instruments... I'm surprised by how well you managed to use EWQL instruments on the first go; most people have a lot of trouble getting a good mix when they first start using them.
As a whole for the first few minutes, the piece feels rather flat... it doesn't really go anywhere fast. Suitable for underscore, but for listening? Not so much. The repetitive nature is not very inviting... I would love a more distinct B section with a different emotional timbre- You have shown me calm, beautiful, and triumphant. There is really only one theme and a bunch of ostinato with one little stretch of something kinda different in the middle. I find it too long for the lacking subject matter if you are treating this in the cinematic style you wrote it... if this were out of a more classical style, it'd be fine at this length.
At the recap around 5 minutes, I'd love to see some counter melodies (also throughout the song) and more variation. There is not enough variation, like a song without lyrics, and counter melodies are non-existent. Stretches 2:55 to 3:40ish and 6:20 to the end could do with SOMETHING happening... flute/oboe/bassoon solo, trading, etc. Sounds like someone decided to go Ctrl-C Ctrl-V a dozen times and figured that was enough, tbh. :P
One piece of orchestration advice I read out of book by Rimsky-Korsakov would apply very well to this- "FRESHNESS of color is more important than exotic color." Whether that means changing the key or bringing in a completely new melody and letting the strings rest a while while brass plays alone or woodwinds lead, it's a solid piece of advice for a long piece.
As for atmosphere, you did an amazing job portraying a calm. I don't know if the title really has much to do with the actual atmosphere though- when I think of freedom, I think of glorious heralding brass and patriotic music. This sounds more like walking across a prairie or hills while the sun slowly sets.
Something to try out is a richer low-end. Some good, wet doublebass notes (use the section sound) can really give the piece a very open and rich feel.
Percussion is good and effective. Consider plopping some gong in too- the 60 inch has a real quiet spread sound that is perfect for the start of a quiet passage. Your timpani part is bland with just quarter note hits, consider more complex rhythms. Timpani is often abused and forgotten- it's a really amazing feel if used well, even just light hits here and there and subtle rolls.
One last thing to note... the Licensing Terms on Newgrounds declare that commercial use is not allowed already, there's no need to repeat that. ;)
All in all, a very nice piece, but could use improvement compositionally, notably in the areas of variation, orchestration, and using counter-melodies to give the listener a fresh sound. It was not really so stellar that I am emotionally touched beyond the raw surface as a listener or impressed by the technique and originality, but it was definitely a step above most of what you see around here.
Keep compos(ed/ing)!
-Samulis