Illustrate a young girl in a school uniform with a cheerful, enigmatic smile, holding a phone to take a selfie. Simplify her character design with delicate lines, giving her a timeless, slightly surreal quality reminiscent of early 20th-century figures. Apply intricate cross-hatching to capture the texture of her hair, uniform, and accessories, creating a sense of depth and shadow. Keep the background minimal, using empty space or a few faint trees to evoke an eerie yet peaceful environment. Introduce a subtle symbolic element, such as a small, floating black cat or a faint bird silhouette, adding a touch of mystery to the scene in classic Edward Gorey fashion.