3girls, bare_shoulders, black_hair, blue_eyes, blue_sky, blush, breasts, brown_hair, bush, clear_sky, cleavage, closed_eyes, dark-skinned_female, dark_skin, grey_eyes, hair_bun, lamp, large_breasts, long_hair, looking_at_viewer, mountain, multiple_girls, naked_towel, night, night_sky, onsen, open_mouth, original, outdoors, ponytail, rock, seorang, sitting, sky, smile, standing, towel, tree, water