Sounds pretty good. I would make the volume levels a bit more consistent though, you can still have variations but maybe not so sharp ones? Composition and instrumentation is great 5/5 on that. I like the electronic orchestra going on. It's a very original idea, has not been done before.
Mixing/Mastering: 5/5
Melody: 5/5
Effects: 4/5 (The part at 50 seconds, when the volume picks up, could be a bit more immersive is the only reason I am not rating it a 5/5.)