1girl, black dress, blue footwear, blue hair, blue headwear, blue theme, boots, dress, earrings, facing away, floating hair, full body, hat, high heel boots, high heels, jewelry, long hair, official alternate costume, reflection, ripples, shooting star, sky, small stellated dodecahedron, solo, standing, standing on one leg, star sky, star symbol, starry sky, thigh boots, witch hat