What makes her pop is the wall is darker than the wall you have in the render. This is by looking at your render and the image side-by-side

"Cheat" and make the diffuse of the concrete wall/floor a bit darker than you alerady have it and see what happens.

Also given the model (the Poser model not the Model model) has got that shoulder thing happening. The Model model's back seems to catch more light.(Got how I want to phrase this) The dropoff from the Poser models back to the shoulder is more pronounced/sharper than the dropoff from the Model model's back to shoulder, so Model model gets more light (thus spec) on her back than Poser model does. Got a shoulder fix morph for the Poser model?

(Does that make sense?)

"Few are agreeable in conversation, because each thinks more of what he intends to say than that of what others are saying, and listens no more when he himself has a chance to speak." - Francois de la Rochefoucauld

Intel Core i7 920, 24GB RAM, GeForce GTX 1050 4GB video, 6TB HDD space
Poser 12: Inches (Poser(PC) user since 1 and the floppies/manual to prove it!)