@ Chesire: thx for your comment ! this is why i post my work here !!. i know exactly what you mean, but i always get to this kind of look after adding more and more lights to the scene.
Maybe i should keep “less is more” on my mind while working on the scenes.
I will try to test your ideas with this scene tomorrow.
as all this is realtime lighting (no baking) testbuildtime isnt very large 
again thx for the constructive critics
stucki
EDIT:
did a little tweaking right now…
better or worse ?