I almost had ending 4, but gave up thinking I had broken the game (silly me). Then got ending 3 and went back and played again to see what would happen and when I got 4 it was so satisfying! Very clever!
The use of the assets is very out-of-the-box and the lighting is gorgeous!
I was on the edge of stopping before I got an ending. I'm glad I didn't, but I wasn't quite understanding the two seller mechanics and how it was progressing the game.