The only advantage to no underwear is if you wanted to wear something on the bottom like Northgirl trousers. I would prefer this outfit if the skirt was a bit longer. I'm not sure if the underwear is noticeable except at certain angles. Ok, just checked and found I have one more screenshot: https://www.dropbox.com/s/4a08jlvagglv3m4/2013-09-21_00003.jpg
It's hard to tell because the camera is sort of from an above perspective.

At least here she's wearing underwear! I do feel in the earlier body replacers they came with underwear. Whereas the most recent ones don't such that if you remove armor from an NPC you get a nude body; unless you use a mod that replaces the underwear!

Thanks. This was a really nice vanilla clothing and armor replacer (that's imperial in the pic), but I had to drop it because some of the NPCs had the bottom half of the clothing missing.

I walked up behind one of them and when she turned around it was the NPC:
http://static2.wikia.nocookie.net/__cb20120929000812/elderscrolls/images/b/b1/Hilde.png
Very disturbing.

Also, even after I tried to overwrite the mod with another clothing replacer all the female Jarls had the bottom half of their clothing missing and their legs spread wide open. It was sort of humorous, but also annoying.

It is a nice pic tho :D

This is an old shot. I know how to use the TM command now :P

Actually, this is my very first trying to escape Helgen. The good old days before I found out how buggy and imbalanced vanilla Skyrim can be.