Thank you! :D
It's quite interesting to see the variety of comments saying how and why the track is repetitive and how to potentially fix it, because they're all true and all of them would work :D
I think the main idea I had was for the dark opening to be very droning in a fixed pattern for that oppressive feeling that just keeps growing, and then break that up once the light breaks through. But honestly I failed to capitalize on that :D as the light portion is essentially structured the same way but just a few octaves higher. While it is a little bit more stabby, it has the same slow buildup and the rest just goes on as if nothing changed. More variety in chords, rhythm, textures, and an actual climax that contrasts the main buildup would all help fix this track, so I also agree with your points :D