please add a good ending, maybe after all "customization" steps, in the form of an option like "yes, but I will close the door first" in the "open...your eyes", and then it's all revealed and you stay with him/them/it(idk)
or maybe after the last "open...your eyes"(the one where the creature breaks your neck no matter what you choose) as the option "ALRIGHT FINE I WILL, JUST DONT HARM ME OK", and... well, you know the drill, the revelation stuff