masterpiece, best quality, solo, 1girl, aged up, happy, mari_ohara, ohara_mari, long hair, medium hair, bangs, blonde hair, braid, crown braid, hair rings, yellow eyes, hair ornament, noble idol outfit, white and gold gown, flowing cape, gemstone earrings, tiara, regal ballroom stage, golden chandeliers, polished marble floor, roses along the stairs, smiling confidently, elegant and charismatic performance
