Honestly, absolutely cute! Very! My favorite part about this would have to be light surrounding her! Just makes it great! I also adore the background, the dark tone just makes it perfect.
But, I'm gonna be honest here as well. The hair/flame doesn't really look like hair/flame. You didn't screw up on it honestly, but to me, I don't think that's how FP's hair is. If I were you, I would add a little more fire colors to it to make it look like it's a flame. That is all. I apologize if I sound too critical.
All in all, very cute and very good job with the background.