For portraits and headshots there is no finer lens than the Canon 85 mm 1.2. Breathtaking images when opened up.
bring the models shoulders into play on the poses. Don’t let them just sit there.
Once I have my position I will ask the model to do a variety of movements with their shoulders- lift, drop, roll forward, and other simple instructions.
Placement of the chin in relation to the shoulder is the next element. the key is to keep experimenting- like have the chin over the shoulder or maybe tilted forward.
But, never have the chin rest on the shoulder. There must be a gap.
Canon 5D Mk 3
85 mm. 1.2 L
f 2.2 1/500