Anime Woman Making OK Sign

Create a polished anime-style illustration of a cheerful young woman viewed from above as she lies on soft white bedding, centered in a vertical portrait composition. She has {argument name="hair color" default="dark brown"} hair tied in a high loose ponytail fanning to the upper right, with wispy bangs and stray strands around her face, warm brown eyes, thin oval black glasses, fair skin, and a gentle open-mouth smile. She wears a sleeveless white semi-sheer pleated blouse with a high mandarin collar and subtle fabric folds, paired with a pale blue fitted pencil skirt. Her left hand is raised beside her face making an OK sign, while her other arm crosses softly under it near her torso. Emphasize an elegant, friendly, slightly playful expression, soft blush, delicate linework, glossy hair highlights, and pastel watercolor-like shading. The background is a clean white bed sheet with faint wrinkles and pale blue-gray shadows, high-key lighting, soft diffuse shadows, bright airy atmosphere, no text, no watermark, no extra characters, no cropped face or hands.