Top quality, highly detailed, 8K wallpaper, monochrome tone banner design, grey, black, white, dark red, high school girl and Akira bike, one girl, red eyes, Akira bike, school uniform, future city, Shiro Masamune style, Big O, flat decal, watercolor style. Concept art, colorful, --style expressive --ar 16:9 --niji 5 --s 400