Here's an example of Jess and V3 in a challenging pose. Admittedly, V3's shoulder doesn't look great. But at least you can get her into a position resembling that of a human. Most women, if their upper arms are parallel to their bodies and they bend their lower arm up, the palm is roughly even with the shoulder. With Jessi, her palm is well above her shoulder. Similarly, most women can put the back of their wrists to their foreheads with their forearms perpendicular to the ground, or even with the hand sloped downward a bit.

I also find Jessi's torso doesn't bend as naturally and gracefully as V3's. You can see that in the image, I think. Vicky's shoulder is awkward-looking, but her chest, waist, and hips look a lot more lithe. (SP is even better, IMO.)