Hi thanks for the link back. Can I make to suggestions? The model should have more of a green tint to her as the ambient light is greenish yellow and her mid tones would reflect that. As well the shadow line around her legs needs two types of shadows. The diffused shadow you have. There should also be a contact shadow very close to her legs and it should be sold black with some opacity. See this piece as an example (not a great example but you will get the drift) [link]
See this piece as an example (not a great example but you will get the drift)
[link]
Just my 2 cents!