It's a beautiful piece, for sure. I believe the main melody begins at about 0:15 seconds in? For the mixing, perhaps you could make the horn a bit louder there to stand out against the background strings.
Sorry for not going too in-depth with my critique. I've been making music for years as a hobby, but only recently am I seriously learning how to compose soundtracks (that actually sound OK). But just when I think I've finished an awesome song, I listen to someone else's music and go...well, maybe not. Haha. But anyway, great work!
On Rye