Very good!
Now this is the kind of song i would really hear in a movie! the kind of scene that makes you think "hmmm the only thing that really makes this scene good is the epic music!" I really enjoyed listening to this song but there are a few changes that would just make this sound movie quality! Like for instance, you have some kind of percussion or bass in the background: switch that for some nice snare drums with some reverb would sound epic! Your bass is also on and off in this song, you should make it better and always there, just at different volume levels! also make it a song by putting some intro and outro! its not that hard to do really, but really changes the mentality of the listener.
Peace!