A sixteen-year-old young woman with pale cool-toned fair skin and dark long hair falling forward over her shoulders, caught mid-yawn with her eyes squeezed shut and one fist pressed under her chin, clearly exhausted, wearing a sax-blue sailor blouse with a loose dark ribbon, a dark checked skirt and over-knee socks, candid close-up shot from the side at desk level, slumped over a classroom desk during a late-afternoon study hall, one arm spread across the open textbook, her other hand reaching for a half-empty coffee can, warm low sun slanting across the desk, a few classmates' heads leaning in the same exhausted slump in the blurred background. Color palette dominated by sax blue, paper white, coffee can brown, and dusk amber, with clear foreground-midground-background layering. Shot with a small aperture and deep depth of field, background in sharp focus, no bokeh, no shallow depth of field.