1990s_(style), 1girl, ass_visible_through_thighs, bikini, clenched_hand, clothes_writing, collarbone, day, dutch_angle, kai_tomohisa, navel, open_mouth, orange_eyes, outdoors, painting_(medium), photoshop_(medium), red_hair, retro_artstyle, sentimental_graffiti, short_hair, solo, splashing, sports_bikini, swimsuit, teeth, traditional_media, upper_teeth_only, wading, water, watercolor_(medium), yamamoto_rurika