That already looks quite decent. The single-leaf windows are hung "the wrong way round" (except for the one in the hobby room), the bathroom window is in landscape format
Here I'm stuck now: what exactly do you mean by "hung the wrong way round"? As far as I can see, they are correctly installed in portrait format. Also the bathroom — it's the same as in the rooms in the front...? Help me out, what exactly do you mean?
and the kitchen will be too dark: there either needs to be a window near the stove or a skylight (a daylight spot wouldn't be enough) above it.
Phew, do you really think so — after all, that's actually only 2.5 meters of wall in the kitchen and then there are already the two 2-meter windows... if I now put another window into the kitchen, basically the entire east front would be full of windows and might possibly have more window surface than facade... I'd have to calculate that. What are the experiences here otherwise? Is it urgently necessary to add a window or will it be sufficient with the two terrace windows?
One more question regarding the utility room: because we have now still installed a guest WC here, the utility room is only about 10 sqm. What are your experiences here? Is that enough for technology, laundry, sports gear, work clothes, possibly vacuum cleaner & co.?