Thank you very much for the feedback!
Sadly I didn't have the time nor the playgroup to properly playtest it with people, though I did run a sort of solo test to make sure things aren't unbalanced.
It was initially the intention to also add different effects to the zone's traversal and all, much like in the Mandelbrot Set, but with changes to fit the theme. Time constraints as well as this being my first written... anything in regards to a TTRPG, I wanted to keep it shorter and more contained. I even wanted to add things like tables to generate your own effects, not too dissimilar to the ones found in the FIST book. In the end though I tried to keep it all in a smaller scope. Maybe in the future I'll update it or make a "sequel"