Just for funsies, I took the liberty to render LaFemme 2 and Antonia Polygon together, with LF2 scaled to 94 percent to make them the same height.

The most obvious difference to me is that while AP's figure is rather boyish (her creator may have a type - I'm just guessing here), LF2 has more typically feminine features, with her shorter legs, narrower shoulders, ampler bosom, and generally softer, rounder shapes. There's one glaring exception, though: her hips are really, really narrow. In terms of overall proportions, I would probably change three things: widen the hips considerably, enlarge her tiny head and shorten the neck (counts as one), and make her feet and ankles a tad larger. Not necessarily as large as Antonia's, mind you, who has been accused of having cankles, but maybe the two ladies could meet somewhere in the middle.

-- I'm not mad at you, just Westphalian.