Okay I didn't want to say anything but while I was experimenting with certain body mods (I'm playing a naturalist/super thief so I want realism in my game play. underwear that seems glued on isn't very realistic >.<) and I found out literally by accident that the SevenBase 7b Natural works perfectly with your mod. use only the meshes though and replace femalebody/femalehand meshes. Do not, I repeat, DO NOT REPLACE ANYTHING ELSE OTHER THAN THOSE. stick with in mod version texture packs.
It works perfectly although if you look very closely in third person you can see a very faint neck seam. now thankfully this changes the body to something more adult looking. Basically looks like a normal woman in her 19-25 range who is just really petite. Also in order to keep up with RP style I'm also using the Athletics mod. Ysmir Kyishkah blitz's around people like they're standing still. Seeing her sprint is like watching a SR-71 at top speed flying away. Good luck catching her xD
(note: she's also my no kill challenge. Need that speed or I'm dead; pooling all stats into stamina and magicka with only 100 health. Keeping her alive on Legendary is a bitch =O)