I need to get my hands on a good brass VST. This one is very good, however as a french horn player (And i wont judge the entire piece at all harshly on this) I HATE the french horn tone, man, no warmth at all. haha, and im not judging you, unless you can actually change the tone, i suggest warming it up a bit.
Now I studied composition with a focus in orchestra and choir, So i have a lot of critique for you! IM not going to go so far as to analyze the piece or anything.
The balance of instruments is very good overall! I dont feel like you established a very reckognizeable motiff, but i love the sounds, and the over all orchestration. Great tambors though not a lot of instruments used.
I love your chords and swells and use of the instruments swelling in and out of eachother, every bit of your harmonies and orchestration was very effective. I wouldve liked to see your waveform expressing some more dynamics, i feel like you actually compressed your master, but i dont think its needed in an orchestra piece. Not sure though, I also wanted more dynamics overall, but you do create dynamics by adding more instruments, which is well, how the orchestra works. I didnt hear very many cello in your strings, not sure how the VST works, over all, I enjoyed listening to this very much, very somber, very dramatic. with a slow piece, its hard to establish a real motiff, but i still very much enjoyed it!