Great work, good melodies and solid arrangement. While it's on orchestral side, it doesn't feel like some default orchestra soundscape, which is good!
On the critical side I'd like to notice that Discovery is a bit too heavy on the top end of the mix? I think it is mostly because of a very loud lead (brass I think?). Comparing it with 2 other tracks they feel well-balanced, but this one was a little harsh, caused me a bit of ear fatigue.
btw you have tracks in reverse order in soundcloud playlist. And I'd suggest that if you upload music there, leave 1-2 seconds of silence in the beginning — SC has annoying bug of cutting first second of the track.