Beautiful lighting. Very Caracaggesque. I wonder how this would look in B&W? It might transform the low light noise into a grain pattern typical of B&W film. One other thing, there is a scan artifact/scratch running horizontally at the model's shoulder that should be attended to. Do you have more shots from this setting?
Beautiful execution. The side lighting works so well in defining the curves of the model and the near monochromatic color enhances the image. This is a real keeper, Jim.
It can be difficult to successfully fill the aspect ratio of a 35mm frame with a single figure. You've done a pretty good job here but the model pose is tense - there is a bit of metastability in the pose. Maybe more pillows behind her?