macitect wrote:
Thanks for taking the time to write. However, can you be a little more specific?
I am pretty sure that the lighting scheme will work well in the house in reality, but I am really at a loss for realistic lighting in MR. I always find my interiors too yellow and dark, then when I play with the camera settings I overexpose...
So if you (or anyone) has any advice on that - well - write away...

OK, my idea as I said before is to use Multilight to find the best level of lighting... Have you worked with Multilight before? you can increase/decrease the power of each light, including then environment, to have hundreds of test images to decide which is best to use.
I think it is a matter of camera settings too... Try to play with ISO or Fstop while rendering.
What I know for sure is that this low lighting would give me a headache... The third picture is very nice, the first two, need more light.
The yellow color exists because of the lights you have chosen... (warm)
Try to use some other lights, or use RGB value close to 255,255,255
One more thing, maybe it is because the images are noisy but I think there is too much bump value or wrong scale for the wall material.
I won't sign it, if it is not a piece of art.. So far, I haven't done any...
Revit Architecture 2012, Max Design 2012, AutoCAD 2012, Moi3d, Maxwell, Octane ... and many working hours