Hi,
A very captivating photo.
I guess I would not have focused on the shoulder if not pointed out, as, I WAS captivated by the eyes.
For such pose, " what you were after and what your model was giving to you", I guess the look would be hard to pull off many other ways naturally.
For an example, if instead of the shoulder there was a fence post, I doubt the result would be the same.
I like it !
Cheers
