hm, not that I don't agree with your lauding of different body types, but I was just thinking: while I could see Wendy as being big-boned and curvy, wouldn't /Babs/ be more likely to be more muscular? Wendy, if I recall correctly, is a teen genius for the Titans, so it's not like she exercises as much as they do to be /that/ muscular all around. Babs having the more muscled arm would make a lot more sense because she's had so many years of building them up while being paralyzed.
and I'm just not a fan of that last panel. unless there's some weird spandex on the seat of the pants, the sweatpants should just drape over her whole butt, not individual cheeks >:(