I completed several interior improvements to my dollhouse.
I installed an interior door, refinished the floors with varnish, and addressed the angled ceiling sections. By trimming these slanted areas with wood and applying wallpaper, I seamlessly integrated them into the wall design. When wallpapering the roof panels before installation, you might notice the top floor's wallpaper peeking through the first floor's slanted sections, which could serve as an alternative concealment method.
I finished the kitchen by completing the bay windows, installing baseboards, and varnishing the floor. Moving to the attic, I wallpapered the space without difficulty, even with the roof already in place. After wallpapering, I attached the attic windows.
Given the dollhouse's unique shape, I plan to wallpaper the back roof walls before installation to ensure they look cohesive from all viewing angles.