This is the bathroom in that dollhouse: [link] First room on the right, second floor.
The bathtub, I did not make; it's a plastic toy I found at a second hand store some time ago, which I covered with veneer. The floor will also be covered with piece of veneer, but instead of 1/4" squares, those are 1/2".
After months without working on that dollhouse, I got bored enough to find ideas, lol.