She has such an odd shaped body... her legs, torso and arms all look like they're from different people. in her after pictures, her elbows and shoulders stand out so much and don't quite seem to fit with her torso. But her transformation is still amazing and so inspirational!
She doesn't even look like the same person. I'd have to agree with what @bambii already said: her body is kind of odd. That being said, she's definitely proving to make the most of what she has to work with. Kudos to her, those abs . . .