Nice job. But I have my own ideal Disney cast:

-Elsa: Queen Serenity (is the only queen, would do anything to save her sister, has white hair)

-Anna: Usagi (well, I guess you get why ^^)

-Rapunzel: Minako (looks a little similar to Anna, just like Mina and Usagi are alike)

-Tiana: Makoto (good in cooking + green color)

-Belle: Ami (reads a lot of books)

-Mulan: Rei (talks to spirits)