As a Finnish man, I have been thinking that I would like to challenge myself and model a sauna.
Maybe there would be a glass door also which would lead to the shower room.
The tricky part would come as there would only be one light source, nothing else.
I like this saunalight (now an old model/style, these days everything is LED-based...):
Inside the wooden box is that glass-monster and inside there would be a 80W(?) bulb.
Would be a nice challenge to see if I can light up the whole scene with one light. The shower room wouldnt catch much light
but would be nice to try to get the mood right.
This is too luxorious, it has a window. But the light is same.