Something from "Mononoke" or "Gankutsuou" with an attempt at accurate patternwork.
ANYTHING from Tsukiji Ano's "Adekan" series.
most noteably ~
the umbrella seller
neko-onna (with the butterfly hands)
ANY of the women's dresses
Adekan also has the advantage of being almost completely unknown (but amazingly gorgeous).
Also unknown and amazing is "Tengu Onmyouji-dou" by Kasai Ayumi ~
Yoshitsune/Ushiwaka, Yasunari (with his tengu mask) or Shizuka (as a fox-woman) would all be amazing.
Check out their other artwork too, since both are primarily illustrators... you may even be able to come up with a dramatic design of your own by looking at Kasai and Tsukiji.
Tsukiji's website - http://naotukiji.main.jp/
(her other work ~ http://naotukiji.main.jp/kaisetu.htm
Kasai's - http://www2.odn.ne.jp/~ayumix/
(not much in the way of art)
Kasai's work on amazon - http://www.amazon.co.jp/s?ie=UTF8&rh...81 %BF&page=1
(the 2nd is the title I mentioned)