2girls, bare_shoulders, coral, dark-skinned_female, dark_skin, fingernails, fins, fish, greyscale, head_fins, long_hair, looking_at_viewer, mermaid, monochrome, monster_girl, multiple_girls, navel, original, painting_(medium), sharp_fingernails, tpamjdsta_(usatokurasu), traditional_media, underwater, watercolor_(medium), weeds