>>36210307>>36210397>>36212171have you never used a booru before or what?
even if you don't use the explicitly trained on booru tags model, both work on the same idea that there is traits on a human that describe it, that's what an AI uses to weigh these traits. In the case of Ame, it doesn't matter what her actual design specs would be, thanks to the ground pounding being prevalent in art she overwhelmingly has a massive ass.
If you specified just breast size, not even Watame, you will have a great majority of art making the women voluptuous by default because those are the "valid" configs the AI knows.
Flat chested adults and oppai loli are not hard in themselves, but that all gets overwritten massively once you specify a character, because the base model usually gets emphasis.