Yui is my favorite character from Fushigi Yuugi,
so while I have several cels of her, most of them
I would have a hard time parting with. Feel free
to look, though:

http://katrinasgallery.rubberslug.com/gallery/home.asp

It's cool to hear someone else likes her
character. (I wanted to see Yuu Watase do a sketch
of her at her workshop during Animazement, but got
drowned out by a group of girls yelling, "Touya!
Touya!" ^_^;; It was still cool to see Watase
making a sketch of any character, though.) 

Good Luck!

-Katrina