solo, 1girl, kira sayuri, grey ha

solo, 1girl, kira sayuri, grey hair, long hair, ((center parted bangs)), ahoge, amethyst eyes, middle chest, official costume, school uniform, purple and white uniform, double stripe purple short skirts, blush, happy, smile, serious, singing, playing instrument, playing electric guitar, on stage, school festival, sweat, string of flags, microphone stand, school gym, indoor, looking ahead, side focus, dynamic pose, dynamic effect, fashion model, good anatomy, perfect anatomy, perfect fingers, perfect hands, (masterpiece:1.2), (best quality:1.2), newest, intricate details, ai-generated, anime