The sub bass has a beautiful presence but it is not in the same key as the piano at all..
Your piano is in E minor while the drone in the bass is Eflat. Just take it down a halfstep
Everything is absolutely stunning..great ambience ^^
Also, it's a bit unnecessary to have so many basslines playing the same note!! What are you trying to accomplish with that?? Just EQ one, use a splitter and minimixer (great way tools to allow for applying effects thoroughly on a instrument) !