Ok here is a test of Drac's & my settings combined.The bump needs obvious tweaking.The spheres are in a "tunnel" with the lightsourse "outside" and slightly above.The tunnel ends behind the camera.It fakes light "Flooding" quite well. @SR-I was not aware of that method,it is very promising,I will add it to the scene and do more tests. @DB-I was refering to your awesome light reflection workaround(a few posts ago) as it adds higher realism to the lighting methods, yours included.Also, for not knowing all the "terms" , your imiges display careful real world observation(something lacking from alot of self proclaimed artists here).

I eat babies.