Sound design is top notch.
I'd try and work some more contrast in there- some dramatic silences and really really loud sections can have big impact. Have a listen to some rachmaninoff piano works, you may find it inspiring for this kind of music. Prelude in G minor is a good starting point.
If you're going to center a track/album around piano personally I would have used the piano more to it's full potential and created a track that would work as a solo piano piece as well as with the electronic elements.
That might be just me because I'm a pianist and I'm fussy about pianos though, I have a bit of a complex about them tbf