Really liked it!
I am a big FNAF fan so seeing a fangame was something i had to see, i really liked the jumpscare tho they were simple, and the idea is also very interesting and original, its been a long time since i haven't seen a original idea like this on fnaf fangames.
I have also done myself some FNAF fangames, that sadly all of the data got lost, and i think i can give you some tips.
I would reccomend showing in the cameras map where the office is,so you can know better where you are, like in the original fnaf that theres a dot implying that you are in there, i would also add some bigger change to the prisoners, because sometimes you can't really tell who is who, maybe adding to one some clothes or a change something so you can tell who it is would be good, but i think thats only me, overall great game, i loved it!