Thank you for all the feedback! I read everything yesterday and discussed the questions. Especially regarding the windows and the facade, we have taken the helpful comments on board. I will try to answer the questions this evening as best as I can.
Regarding the kitchen, I would like to show a
draft, because now the placeholders have been mentioned repeatedly. So far, we have only sat once in the kitchen studio and sketched on paper. Many things (where the sink is, where which appliances go, the exact lengths and distances, tall cabinets yes or no) have not yet been considered
but roughly like this.

For the bathroom upstairs, we are still searching for inspiration, especially because the window there is so tiny. This is a draft that we liked, where the window is then as big as everywhere else. (the slope is sketched by the black line).
Otherwise, we still have an appointment with the architect on Monday to address some of the points here again.
In any case, thanks a lot for all the feedback.