1girl, ahoge, barefoot, bikini, black_hair, blush, body_blush, collarbone, d:, full_body, grey_eyes, hair_ornament, hairband, hugging_own_legs, leaning_back, legs_together, long_hair, looking_up, open_mouth, ponytail, red_bikini, shadow, simple_background, sitting, solo, sweat, swimsuit, white_background