Excellent concept - I like the light/colour following the player and the hues being left where the player has been, I thought that was a really nifty idea!
It seemed hit or miss when I jumped into enemies whether it would kill them or me, so I mainly just hugged the walls and hoped the placement of the coloured squares would be nice to me!
I also liked the story/poetry elements after each level, that was fairly calming.
Overall, I enjoyed playing it! I think a few more levels of this kind would be quite good :)