Thanks for clarifying that! I went back and played it again and everything after day 5 was very well done! The tonal shift and the decline of everything came through super well :) The ending, at the mirror with the light, was also very atmospheric and done well, with the light repeating and all that.
I reckon you're right, the changes might need to happen a loop or two earlier, but the bones of this are solid!
The only minigame that was a bit of a drag was the fish feeding one, as it took a bit more skill and you could fail a few time on it. but once that was gone, it got much easier to push through and see the whole game :)