(masterpiece, best quality, official art:1.2), waist up, 1boy, solo, cosmic musician, playing a cello made of starlight and dark matter, musical notes appearing as glowing constellations, wearing an elegant tuxedo that dissolves into nebulae at the edges, background of a grand hall in the middle of a galaxy, stars and planets floating around, ethereal glow, (global illumination:1.2), ray tracing, magical atmosphere, breathtakingly detailed instruments.
