Update: 20-03-12
If you want a version compatible with TCG tradable companion gear go here: http://skyrim.nexusmods.com/downloads/file.php?id=13145

It is in the optional downloads, the Main file is not needed.

Since the release of the Creation Kit I have been playing around modifying my followers. I used Follower Tweaks - Several Flavors by Expired
http://skyrim.nexusmods.com/downloads/file.php?id=3111
as my play ground and heavily modified all the followers.

This mod is a recreation of the Jenassa I modified in Expired Follower Tweaks. It modifies her appearance and adds a couple perks but this particular mod does not mod her gear or make her essential.

There are 2 screenshots of the settings for her face in the Creation Kit if you don't want to use the Mod but want to make your own. Just remember after editing a character's face in the CK you have to select the character in the Object Window Editor list and press CNTRL+F4 to regenerate the face gen data or else the NPC will have a darker face than body.

I use:

Better Females by Bella by BellaGailSkyrim (minus the femaleuppereyesocket.dds)
http://skyrim.nexusmods.com/downloads/file.php?id=2812

DIMONIZED UNP female body by dimon99
http://skyrim.nexusmods.com/downloads/file.php?id=6709