1girl, solo, short hair, blonde hair, purple and yellow eyes, standing in a sunlit classroom, wearing a fitted short-sleeve white blouse with the top buttons undone revealing a hint of cleavage, tight pleated navy skirt ending mid-thigh, sheer black thigh-high stockings with lace trim, one hand holding a pencil near her lips, playful and slightly mischievous smile, leaning against a wooden desk with her hip pushed out, sunlight streaming through tall windows casting warm glow on her face and hair, chalkboard in the background, cinematic focus, ultra-detailed fabric and skin texture, masterpiece, best quality