What do I think? She's great! The first and foremost thing is that she really looks like a bretonina grail damsel!
In the interest of constructive criticism:
Likes:
Breasts. I generally like them, but these are a nice pair, beautifully done. The whole breast/neck/collar bone is very good and I know from experience how hard it is!
Smoothness: You've got some serious control there.
Eyes and lips: look great.
Hips & belt. Very natural pose, very dramatic and attractive.
Dislikes:
Nose. After staring at her face trying to figure out why she looks a bit like a Trukker, it's the nose. Now, it's a nicely sculpted nose, it's just that she's got a snozz like the Cos, to quote the Bloodhound Gang. I would seriously suggest you take off her nose and give her a smaller pointier nose.
Hair: It's a bit flat. I would really go over the ends of the hair and have them all being swept by the wind, look at the new daemonettes for inspiration. Individual strands curling at the ends would give it a lot more life.
Dumpy. Sorry, she just looks short. And this is why: she's not quite proportioned right. Her head is a tiny bit big (but that's not so bad), but her legs are too short. I would hack off the bottom few mm and make her taller (even if that makes her bigger than 28mm, it will be worth it!)
Let me show you what I mean: The distance from bottom of crotch to the head should be equal to the distance to the feet. If you superimpose that on your model, her feet should be here:

I'd give her longer legs (hey, if you're sculpting an ideal woman why not give her longer legs?). Her knees seem to be in the right place, all you need to do is extend out the bottomo of her dress - she looks like she's had her feet cut off!
All in all, a very nice sculpt though, and all criticism is intended to be constructive! Better than I can do but I'm inspired to try my hand at some 28mm sculpting myself (you can get your own back then!)