Like how this song builds, introducing new elements gradually. Every new melody gives more context for all the others. Then the switchup at 1:28 prepares us for whatever you’re going to add on next.
The piano does get a bit monotonous after a while, and with all that repetition the melody becomes a bit grating. I would recommend changing it up or dropping it entirely in some sections, but it’s up to you.
Can’t wait to hear what you create next, Pentalogue!