Yep, and to qualify my opinion, I get paid for what I do across several styles and media.
I disagree with PP that the proportions are accurate and so on, theres niggly things that aren't quite right but anyone who is 9 simply hasn't yet had the time to gain the experience/practice, they just haven't lived long enough to do that yet and that is fine. Shes a long way ahead of most of her age group!
She clearly has talent, my top tips would be to keep supplying her with quality art materials (yes, they're expensive) and encouraging her to try out different techniques, materials, styles - nothing more stifling than being worried about 'wasting' materials, because of the cost of them.
And - don't let her get stuck in just one style or subject, it is very easily done and then kids get great at drawing just one thing (me, horses!) and everything else suffers.
If she will (but don't labour the point or it gets boring and offputting), get her to look at anatomy and how stuff works under the flesh, where are the bones, where are the muscles, how can they move etc.
I'd also see if she'd be interested in digital, I work with both traditional materials and digital, there are advantages to both, but particularly in digital work, you can play around with ideas and styles without any risk of wasting materials! SO you can fiddle around, find out what you like, then have a crack at it the traditional way (I did this with pastels as they are too expensive to buy if I don't like the effect!)