I was choosing between an emotionless russian girl who uses ice and a polish girl, and found this image that sealed the deal to go with Poland: https://s-media-cache-ak0.pinimg.com/736x/64/24/4c/64244ccefcb823c5ded79cd22fe818c3.jpg

She will have something nature related. I'm trying to come up with a good magical girl name so that's what's taking so long now.