Princess Dragon

Fanfic idea because of my desire for a Disney Princess and RotH crossover: Gems similar to the one that lead to Kyra's transformation have fallen into the hands of Snow White, Cinderella, Aurora, Ariel, Belle, Mulan, Pocahontas, Tiana, Rapunzel, Merida and Elsa, causing them to become dragons as well, and granting them unique elemental powers. Upon meeting Kyra, they set off on a journey that could change their lives forever and discover that the gems that changed them might be the key to unlocking the mysteries of their elements.

What do you think of this possibly compelling story idea?