1girl, absurdly_long_hair, air_bubble, blue_background, blue_eyes, blue_scales, bubble, closed_mouth, colored_skin, fins, full_body, gem, gradient_background, green_gemstone, green_hair, head_fins, long_hair, looking_at_viewer, mermaid, monster_girl, original, purple_skin, sakutake_(ue3sayu), scales, simple_background, solo, translucent_hair, underwater, very_long_hair, white_background