I was disappointed that you turned the obese woman into the victim in most of the photos she appeared in.  You are just reinforcing the stereotype that people who are not reed thin are insecure, unhappy, and ripe for being dominated by the "beautiful people".  This is simply illustrating commonly held prejudice, not looking deeper at the subjects you are photographing.  

Are you also implying class distinctions, since the heavy woman is first seen dressed in a waitress' uniform before she is dominated by the thin woman?  Maybe you should have stressed more forcefully the class struggle aspects if that was your intention here.