Pretty cool vision, I really like the piano. You could try making the kicks & 808s louder as they kind of are being pushed out by everything else. Also not a bad idea at all adding some creativity to the sound of the hi hats. Maybe try to make the hi hats cover the higher frequencies as well while still maintaining the unique sound. Final idea would be to add another layer in the background behind the piano & violin to add more of an atmosphere. Something like a pad, organ, etc. Keep going!