i think most categories should have a slider maybe like this listActually, I like having shoulder separate. Upper/lower can be combined, no argument there. Hand could stand alone too, but at present it's more trouble than it's worth.
Also, I've seen this in a few 3D games: there should be a way to have a static 2D display overlay for menus and things, that doesn't move around inside the world. It's nice UX to have clickables in a predictable location.
Lastly, I think dev said something about MC starting as less-than-attractive. Hopefully that can change - I definitely prefer a good-looking MC. And a bit of MC variety could induce some more donations.
hair, head, face, eyes, nose, mouth, neck, shoulders, upper arms, lower arms, hands, breasts, belly, hips, upper legs, lower legs, feet, make up, weight
and for the personality sliders they should be listed like this
anger(red bar fill speed), pain(purple bar fill speed), pleasure gain(pink bar fill speed), lust(green bar min-max), service(how easy she is to make her blow), and hornyness(how easy she is to penetrate)