best quality, masterpiece, realistic, photorealistic, 1girl, solo, grin, standing, full body, (holding microphone:1.2), voice actor, singing, cyb dress, dress, light blue dress, short sleeves, frilled dress, layered dress, suspender skirt, white shirt, frills, sailor collar, bow, white thighhighs, loafers, stage, stage in the backgorund, stage lighting, stage spotlight, detailed background, audience, people , <lora:idol_costume_style9_v1:0.7>