masterpiece, best quality

masterpiece, best quality, 1girl, solo, upper body, side view, messy short hair, wearing loose school uniform, holding a half-open paper windmill in her hand, white line art on solid Klein blue background, sketch style, soft brush texture, slight line jitter, scattered windmill fragments, faint wavy lines like wind, minimalist composition, large blank space on top, phone wallpaper, vertical composition, melancholic and gentle atmosphere, clean and high contrast