The pose on the left is making her hips appear wider than they were. Leaning against the rail pushes some flesh forward and slightly crossing her legs pushes the dress forward. The positioning of the arms at her sides slightly apart, with rail between creates a horizontal line - the effect is like the base of an inverted triangle. I'm not saying she wasn't more curvy, but it looks to me like the pose was chosen to accentuate her curves.
|