No there back panels, with a reversed light on to it with a high light source beamed on to it.

Ye iv learned that setting up a good light from start helps you improve your sss shaders, or even on any other project.

I now it sound like a last job to do, but it helps me in improving the textures. after the lights are in place, also setting up a rendercam is a key feature of your scene, unless your making a tpose model.