Ok, this is the second draft. I have changed the pose, the camera position and the lights following your advices (they have been very appreciated, thanks to all!).

I am still unhappy about the shadows: apart from reducing light intensity, is there another trick to make the shadow more "morbid" and diffuse?

Diolma, you are right: I omitted to say I am using Poser 6. Firefly and raytracing seemed wonderful things at first, but rendering times are so big that I am thinking of switching back to the old renderer and shadow maps. Anyway I need to experiment a bit. The problem is that the house is not modular so it has to load and render all of it for just a room.

Any idea about where I can find some nice wall paper or decorations for that naked wall?

Giorgio