I really loved reading your inspirations while listening to the track! It's a really solid build, a bit on the quiet side tho, but nothing a volume button can't fix.
One thing I'd like to comment is the lack of focus on the first beat. This game is heavenly centered around it, and without it, the song just feels a little bit out-of-scope.
Creativity/composition wise, amazing job! Plenty of variation like you would expect during a boss fight.