1girl, d, arm_support, ball, bare_arms, bare_shoulders, blue_one-piece_swimsuit, blush, braid, breasts, brown_hair, exercise_ball, green_eyes, leaning_forward, long_hair, looking_at_viewer, low_twintails, old_school_swimsuit, one-piece_swimsuit, original, school_swimsuit, shibacha, simple_background, small_breasts, smile, solo, swimsuit, twin_braids, twintails, white_background