Dont take me wrong, but this is kind of monotonous, you need more bass on the piano; use the pedals, use modulations, you keep the same volume; change registers, you are using just like two octaves ( i could be wrong) and if you are going to use the same "theme" at least change the tempo or make some variations. Anyway, this just my opinion, good luck.
Drums sound very natural, but could always use more bass.
Please contact me if you would like to use this in a project. We can discuss the details.