It depends. She would need to have created a lot of art and put together an impressive portfolio, better sooner than later. Its also good to say that you've sold more art, or been in a gallery, and anything like that- anything to make a name for herself. And with any other school, she should have a little job experience, maybe some volunteer work, and extracurriculars. Good grades aren't bad either :) In the end, the school board or whoever picks students will need to decide if she has talent or at least the potential to become a great artist.