Structurally nice. The screech noise could harmonize can better with a thick bass. It doesn't have to be a heavy bass, just a thick one. This is nice, tho. :P
Btw im sorry if im coming accross too strongly, i just really like the idea and would love to see it reach its full potential. I can see you put a lot of work into this so far, and if you like it as it is (its great rn) then you dont have to do anything more to improve it, this is just my opinion of what could be done, it might make it sound worse in your opinion, but that's opinions for you.