Haha the pose kinda suggests she is doing something silly right now. Well done on that part. It could use a bit more definition, the eyes for example are lost. Not sure if this is the photo or the actual painting though. Judging from the description this is probably some kind of doodle, but dayum of this is the watercolor equivalent of a doodle, then you should doodle far more often.
The main reason why I started a review though are the colors. I know I keep saying this but it's true. In this case I love the purples and blues you used and combined.
I am not a fan of the background. The fire-y center is nice but I don't like the sudden clean edge of the red part.
Nice work. :D