I love these girls, seriously, they're awesome. I'll give you a quick thing, explanation, whatever:
(Left to right)
Violet: Earth- vegan, stubborn, very 'save the *insert nature thing*
Amber: Fire- loud, outgoing, bisexual, saucy, hot-headed
River: Water (duh)- usually calm, shy, sometimes angry, very 'go with the flow' (get it?)
Zara: Air- mostly calm, but when angry... Well, very angry, vegetarian.
I might use them again, sooooo.... Keep an eye out!