This shot took quite a bit of engineering on my end... considering all 4 models are the SAME girl.
I had to have a second model on set to interact with the "core" to make sure I had correct shadows and body contact for the end composition.
So for every pose position you see... there was a model behind the scenes that had to do the same exact pose.
The final composite was using elements from each photo taken layered to have only the core model.