what do you mean, by "she is very artist"? And how did you learn about that info? Where have you met her so far?
What you can do depends on what you know about her. So try to learn as much about her as possible (hence the interest of knowing what you mean by artist).
Really, if the only thing you know about her is that she clothes well, then talk about that with her (her style, where does she buy things, etc).