rella, hatsune miku, vocaloid, highres, official art, second-party source, 1girl, aqua eyes, aqua hair, aqua necktie, arms behind back, art brush, artificial wings, bare shoulders, black skirt, black sleeves, black thighhighs, boots, bow (music), can, character name, compass (instrument), copyright notice, detached sleeves, drawing tablet, from behind, full body, guitar, hair ornament, hatsune miku happy 16th birthday -dear creators-, headphones, headset, high heels, instrument, knitting needle, logo, long hair, looking at viewer, looking back, miniskirt, necktie, needle, otamatone, own hands together, paint palette, paintbrush, palette knife, paper roll, pen, piano keys, pleated skirt, reflective floor, scissors, sketchbook, skirt, smile, solo, standing, stylus, thigh boots, thighhighs, twintails, very long hair, watercolor tray, wide shot, wings, wireless mouse, yarn, yarn ball, zettai ryouiki