Le Chevalier D'Eon: Teenager to Poet-Sorceress

[Mazoku]

Hm, very nice, quite intricate, deep, and aesthetically pleasing. If the character wasn't a villain to begin with this would have been a good addition to the "Evil Conversion" thread in the Transformation section.

Transformations from dark to darker aren't usually as interesting as the light to dark ones; heroine to villain, but this is very well done, especially since there's a big jump in sexiness, which is the main point anyway.