Hello fellow EastWester! =)
There are a lot of very nice melodic lines in this piece. One thing that I think you could really benefit from is automating the volumes (or expression controllers) of the instruments to add more dynamics. For example, in the very beginning with the low strings, they can crescendo through the phrase to add movement instead of staying on the one volume.
One thing I was also thinking is that I'd like to hear it with a slightly faster tempo.
I really like the melodic lines in this song. The horn rips at the end also sound really badass.
Great stuff, keep it up!