Oil painting. Expressive brushstrokes. A close-up portrait of an 18-year-old young woman with wild dark curls gathered in a messy updo. She is wearing small round wire-rimmed reading glasses and a high-necked dark sweater. She has a barely visible freckle on her cheekbone. Her expression is intensely analytical, mixed with underlying nervous tension, as she looks slightly off-camera. The lighting is soft and natural, filtering through a large Hogwarts library window, highlighting the texture of her hair and the subtle reflection in her glasses. The background is a blurred, airy space with warm, muted tones. Refined facial details, natural imperfect skin, classical oil aesthetic.