I've recently added the "Crusader UI" theme to my list of UI's to make, and I have already created the spellbars for each theme, here are screenshots of the only parts of the Crusader UI that is done, except that I plan to redo the spellbook, the rest will come soon enough:
spellbar(left) spellbook(right)
Here is a list of UI's I'm currently developing in my sparetime:
Theme Title | Modder assigned to theme
-------------------------------------------------
1.) Arcane | Remelio
2.) Briar | Remelio
3.) Crusader | Katn
4.) Draconis | Drakah
5.) Rivendale | Katn
6.) Spirit | Drakah
7.) Steamworks | Kuvasie
8.) Undead | Kuvasie