ayuuu65, hatsune miku, vocaloid, highres, 1girl, aqua eyes, aqua hair, bare shoulders, black skirt, blue necktie, closed eyes, collared shirt, dated, detached sleeves, floating hair, grey shirt, hair between eyes, half-closed eyes, happy birthday, headphones, interlocked fingers, long hair, necktie, open mouth, own hands clasped, own hands together, pleated skirt, shirt, simple background, skirt, sleeveless, sleeveless shirt, smile, solo, sparkle, twintails, very long hair, white background