This a very elegantly designed. Using the same scenarios from different points of view, and looping back to the beginning through multiple paths, demonstrate an ability to do a lot with a little. I'm very keen to this type of minimalist horror. Whatever extra elements you add ()variables, images), I would suggest to keep your puzzle box tight and precise. Having the elevator as a returning motif is certainly a good way to to ensure that, whatever new scenarios you come up with, we always be able to return to a familiar (if eerie) location. Good job!