I was already familiar with the song when I saw this posted and it does have good potential
I was feeling during the early synth parts that shields may have been a bit overused where the notes are changing. The third one has a lot more of single hits, switching between lanes that seemed to fit a bit more, and you can certainly mirror or rearrange the same monsters if you wanted to carry it a bit.
The final snakes are a bit tough following the big slowdown, probably better to leave the three lane hit for the final and the previous occupy 1-2 lanes at a time?