Really nice building block, that staggered roof instantly feels like a slice of a real Tokyo street. I also like how you keep everything in a calm grey value range, so the windows and railings read clearly and don’t fight with the roof tiles. If you make more variants, a bit of rhythm-breaking - different curtains in a few windows, AC units, a shop sign or some laundry on a balcony - can do a great job hiding the modular repetition in game.