I have that one. The special edition of volume 2 comes with a little book full of character sketches that were made (I believe) for the anime. There are a page each for some of the more 'major' characters and minor ones are grouped on different pages. There's a page with Austria, France, and uh, someone else in period clothes. It's nice but it is pretty small, and if you don't like that kind of thing, then you probably shouldn't bother getting the special edition.

(The little book itself is actually the sanzzier cover, I think. The actual volume cover is plainer.)

(Where are you, by the way, if you don't mind my asking?)