November 12, 2016 11:18pm With your arms tight in to your body, you actually contribute width to your body, have a look at your other poses where your elbow out from your body contributes "negative space" it shows more of your waist and contributes shape to your body. The classic look of left hand on hip and right hand in hair is a classic for that reason, Check out Lindsay Adler's free article on posing pitfalls.
