In the bathroom upstairs, doesn’t the small niche practically scream for a shower?
Or is there too much of a slope?
In my opinion, there is no space for a shower there.
What are you guys seeing?, there IS a shower (on the back side of the washbasin)!
The slope is on the plug side of the bathtub. Overall, by the way, I would rather describe the bathroom as a training course for rubber people.
Unfortunately, the OP doesn’t provide any section or any information about the roof pitch and knee wall. How should one evaluate that?
Well, there is a slanted view mostly of the gable side. In the overall view of the drawings, I would guess no or at most a vacuum cleaner knee wall, and a roof pitch over 40°. Just because of the matchstick interior walls, I would rate the depictions as sketches (with the consequence that after eliminating the bottlenecks, two to three handfuls of square meters will have been added). There is a reason why I recommend orienting oneself to proven functional designs. As a painted wish list, unfortunately, it is the rule that an amateur design exceeds the budget again after resolving the bottlenecks ;-)