For some reason, I’ve never published these of the lovely Michela Elley, who unfortunately doesn't model anymore.
Image one is a sidelight from a window in the studio. Image two is a tunnel of light from a window: three styrofoam plates set up on either side and above the model to ensure the light is directional from behind the camera, similar to a Ringflash.
Three and four are backlit by a window, similar to the booty shoot on 5th but from higher windows in a different studio, with more flagging to create a stronger rim light.
Five is a string curtain in front of a sunlit window, and six+Seven is daylight. Btw. The mirror cube is in fact a small theater stage in a park near Copenhagen.