I liked the opening mysterious tone around the melodies, almost like a documentary about space. The pianos later reminded me of parasite eve. With the mixing though, I did think that the hi-hats where a little loud. I'd also suggest adding some reverb (not delay) to some of your percussion to help it blend. My last suggestion would be to use a compressor on the pianos to shave off some of that little extra to get a nice cohesive blend. Cool stuff man. Keep creating!

I produce hip-hop, so if you get a sec, here's me taking my power back from a harsh life.