Great song, the whole thing goes together pretty well and is overall enjoyable to listen to. Here are a few things I have to say:
The start is fitting and sounds good, but the first drop is a bit sudden. You're listening to it, not expecting much to happen and then BOOM, the drop hits. Of course the drop isn't bad once you get into it, it's just that the build up is hard to see. The actual drop has lots of different sounds that all go together and is very good.
During the middle, there a section that consists of two different pianos. They don't go together incredibly well, but it's alright.
Now, the second drop had me smiling. The build-up was fantastic, and although it was the same as the first drop, having the awesome build-up somehow made it sound better.
The ending goes well the whole song and wraps it up nicely. Overall, this is a good and enjoyable song. I would definitely either make the first drop less intense so the second drop sounds like it's the first drop and would make the piano in the middle more effective, or change up the first drop to be different than the second, sort of like how "NK - Nine Circles" does it. Of course, this is up to you and how you think it sounds best.
I hope this helped. :)