0.8s exposure handheld. Model's boyfriend was popping the strobe fairly randomly during these frames - it looks like it went off during this frame but it may just be a result of her locking position at the end of her head throw.
f/13 gives enough DOF to negate the need for much focus tracking.
Ahh, skin tones. Ahh, nice light on skin tones. And an oooh for the grain as well. Another ahh for the moment of focus on the ear. Haha I'm chimping over your shot! Srsly, very well done.