We have now decided against textured wallpaper and for painter's fleece, which is currently being applied. The colors are as follows (I am skipping photos because they look different on every monitor):
Ceilings (also in the technical room, but without fleece wallpaper):
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Caparol, Light White L96 C2 H109
Walls (also in the technical room, but without fleece wallpaper):
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Caparol, Curry 60 L94 C11 H90
We plan to put expressive (possibly self-adhesive) wallpapers on individual walls or hang large-scale pictures.
I really like pictures from the "NYC Dance Project", I just want to research whether a slightly lighter background is possible, because gray tones/dark colors make me sad.
The exterior facade of our house has now been plastered, and it may be painted starting next week. As soon as the scaffolding is removed, I will share new photos here. :)