寝起きのストレッチ

anime style, high quality, soft morning light filtering through a bedroom window, a sleepy girl sitting on her bed or kneeling on the blanket, arms stretched high above her head in a relaxed morning stretch, loose-fitting pastel-colored pajamas, slightly messy bed hair, half-lidded eyes, gentle yawn or closed-mouth smile, subtle blush on cheeks and collarbone, wrinkled bedsheets, a pillow pushed aside, toes slightly peeking from under the blanket, particles glowing in the sunbeams, cozy and peaceful atmosphere, natural light casting warm highlights on her skin and fabric.