Is is possible to dress her in other stuff??(she's not a follower, but I still don't see why I can't have her wear something different every now and then!)
As HavingPhun mentioned you can pickpocket NPCs' clothes and they'll walk around in their underwear as long as you leave their footwear on (maybe weapon and or jewelry, but I leave their footwear on just to be sure).
This is actually one of my biggest complaints as well. We should be able to deck our spouses out in whatever we want and deck them out in jewelry if we've got the means.

Here's her full face, but you can't see her hair. IIRC it's got the 2 braids on each side pulled back, tied, and then hanging down 2 down her back and 2 cascading over her shoulders.

http://static.skyrim.nexusmods.com/downloads/images/10191-3-1329542541.jpg
Edited to correct spelling.