To whet your appetite and keep your writing fingers limber, take a good look at the photo, or let a prompt settle in your mind. Set a timer for a reasonable amount of time, be that five, fifteen, or thirty minutes. Then start writing.
This woman has just accepted a mission of vital importance. Tell the story of how she goes about accomplishing it.
Write about a character from a book, movie, or television that you wanted to be when you were a child.
Write an article or blog post about the way you create characters for stories.