The skin shader looks too waxy. Your scale conversion setting is off. Try fiddling with it a bit. I also don't think you have shadows turned on. Either that, or the SSS is destroying your shadows, which completely eliminates the dramatic mood you're going for.
Also, it would be nice to put in a spec map as well to break up the uniform highlights. If you want us to take a look at the lighting, it would be nice to see the scene with a ~60% gray matte material assigned.
Imagination is more important than knowledge.