Missing hi-hats. That's the first thing I noticed. Also I feel the synth choice for the drops is a bit off. I really like the chords. The melody sounds cool too. Nice!

Good!

I like the melody mixed with the chords sound like a horror movie xD.
The only thing I would add to make it absolutely great:
-hi-hats in the second part of the drop or whenever you want
- some more effects to give it more body.
-differentiate a little more the drop of the other parts of the song.
Without telling all this the song is epic.

Growing up in the world of music, but there is one thing missing.... hi-hats. Hi-hats a tone of character to a song. Just an idea, because that's what makes most songs great. Also, scales are another thin to learn, the main riff sounds a bit weird, just because of that extra flat there. Still this is really good and really cool as well with that wobble bass.