It's very hard to get expressions to go with what the picture is saying. And to me, it looks like it's saying... Stubbornness, reluctancy, independence, willed, strength, and preparation. I truly love how her eyebrows curve just right and her eyes are sized reasonably. To me, this is the best Frozen fan-art that isn't like... anime styled. I don't know, but this style and the way you portrayed her is very... intriguing to me.
This is awesome! It's as if the magic is generating a wind that's blowing Elsa's hair back!