Definitely a fellow fan of trying to layer in the music to represent progression, and likely that there were visual color themes to match what entered the picture.
Minor tics (that are not related to the grading criteria!) is that it felt the player would slide to much, felt it should come to a stop sooner, kept sliding off after landing the jump. Also as someone who struggled with this in my own entry, would have been nice to have a little cross fade of the prior track when you collect the orb.