Here is my opinion on the original pictures, as I think all but one of the modified versions misrepresent the activities these women would be in. These women are mostly athletes of some kind or are involved in athleticism in their games. And athletes rarely have much body fat, and their muscles are both strong, toned, but not often bulging. Strength does not equal bulging muscles, but usually come with some muscular definition. Specifically to the originals:
Lara: Lara has never been realistic, but she should have some definition to her body, even with her trade-mark chest (implants?)
Impa: Actually Impa's original is probably the worst "offender" and her modified is most realistic, as she is modeled after a belly dancer. Belly dancers often do not have sculpted abs, as it's probably not seen as attractive for the sport - and that's where the visual attention is drawn. But this was Ocarina of Time, and the poly count was pretty low, leading to some interesting choices in proportions for artistic sake (see also Great Fairy).
Helena: Second worse offender. She isn't that "thin", but she has absolutely no definition, which isn't realistic for a fighter.
Jade: She's basically an MMA fighter. Maybe less boobs, but her body is generally appropriate otherwise.
Sonya: Just like Jade, although worse in the over-sized boobs department and her legs could be bigger, especially if leg strength is her specialty.
Christie: Kinda disproportionate. Tiny arms and legs, but rock-hard abs and huge boobs. Smaller boobs, larger, toned arms and legs and she'd be realistic. Ribs showing a little, in a pose like that, is fine for an athlete. It doesn't scream malnutrition.
Cortana: Not human. Not unhealthy either though. She at least has some curves. Seems to change the least in the altered pictures too.
Tifa: The characters of FFVII, especially the PS1 versions, were never that realistic proportionally. Tifa even has some muscle definition, although maybe her legs are a little on the small side for how much kick-boxing-ish moves she does. She has big boobs, but unlike some other games mentioned, she is the only one in FFVII. Aeris is practically flat.
GTAV Girl: Have you ever seen Kate Upton? If the GTAV Girl had bigger boobs, it would BE Kate Upton. And Kate Upton is not unhealthy.
Rikku: She's 15-17 years old in the games, and a swimmer. Maybe slightly more definition, but otherwise not unrealistic for her age and activities.
None of these women would be as plump as represented by bulimia.com (ok, maybe Impa). They just look like the pics were altered by BBW fetishists and nothing to do with "normal."
Just to be clear, anorexia and bulimia suck (although I also partially agree with George Carlin on the subject), but frankly it's the representation of real women, like in TV, movies and magazines, that fuck up girls' and women's heads into thinking being super thin is the only way to be happy. Video games are fantasy - and even in this list, there is a fair amount of body diversity. And even that is evolving to include more diversity - see Ellie from Borderlands as a prominent example.
