Plus, I can give you a hint that your artist isn't happy with you. I can assure you - she's far more kind-hearted that I would be, given the circumstances.

Realize, please, that in this community, artists have something of a celebrity status. Their skill grants them certain privileges, and one of those privileges is undoubtedly that they can't be forced to draw a specific picture.

In other words, you have to do some work first. Write that story of yours, then point at it and say "I need this and this picture for this scene. Would anyone be kind enough to do it?"

You know what? By the time you do it, they will be so fed up with you that you won't get your picture anyways. Except maybe from the artist you bug. Because she's much better person than you deserve.