1girl, ass, beach, blonde_hair, blue_eyes, breasts, full_body, holding_fireworks, kofune_ushio, legs, long_hair, looking_at_viewer, looking_back, one-piece_swimsuit, outdoors, reflection, seashell, shell, small_breasts, solo, sparkle, standing, stardust_(chen'ai_weiding), summertime_render, swimsuit, thighs, very_long_hair