Here is a picture by another artist I found on Pinterest. Her name is Monica Barengo and this is from her Vampire series. For more of her beautiful art, visit her blog.
This is another great writing prompt, but I think the story would change depending on whether or not you knew the series title. When I first saw the picture, without the series title, I imagined that these two young ladies were walking to their new school, something like the one in What Katy Did at School by Susan Coolidge. If I were to write a story based on this, I would be inclined to ignore any references to vampires.