firefly (honkai star rail), artist:torino_aqua, [{artist:azuuru}], 1girl, solo, long_hair, breasts, looking_at_viewer, blush, navel, wet, see-through, water, frills, parted_lips, stomach, blue_sky, cloud, ocean, wading, frilled_bikini, bikini_under_clothes, bikini_skirt, best quality,highly detailed,masterpiece,ultra-detailed,illustration