3. Forcing the chin away from the neck
Lean the head back and push the neck out. This pose creates a straighter line under the neck and helps your subject look alert and purposeful.
4. Arching the back
Exaggerating an arched back defines the waist, creates negative space, and adds tension and implied motion.
5. Dropping the shoulders
Ask your model to take a deep breath and relax his or her shoulders. With the shoulders dropped, the neck is elongated. The pose looks elegant and encourages better posture.