I maintain skepticism over the ending. It really would have been better to force God to make the decision over who was to die. It was their idea in the first place to start this experiment, they should take responsibility for it. This ending feels cramped, generally like the rest of the story. Even considering the "heartbeat hypothesis" its still just seven days this story took place in. I genuinely believe God would not have decided, being a morally deficient being they needed the two humans to make the moral decision instead.
Whatever, the art was very pleasant. 7/10.