best quality, masterpiece, realistic, photorealistic, 1girl, solo, looking at viewer, smile, standing, full body, arms at side, robin cosplay costume, cosplay, blue hair, long hair, dress, asymmetrical dress, strapless dress, detached sleeves, detached collar, head wings, feathered head wings, angel halo, halo, bare shoulders, gloves, treble clef symbol, music symbol, jewelry, high heels, blue high heels , grey background, <lora:Honkai_StarRail_Robin_cosplay_costume_v1:0.7>