Love the font you use. The girl is a bit to much. I like the way the letter 'd' is surrounded, can you make the face more abstract, perhaps eyes/nos/mouth only and a ponytail more like a wave (think of the nike logo).
I really, really love your style. I would use the logo for a younger public. Right now it is a bit to sweet for our target audience. The girls we are selling our product to are powerhockey girls who wants to look nice.