1girl, d, ahoge, bad_anatomy, bad_arm, bad_perspective, bad_proportions, banana_boat, blue_one-piece_swimsuit, blush, brown_eyes, feet_out_of_frame, long_hair, name_tag, ocean, one-piece_swimsuit, onii-chan_wa_oshimai!, outdoors, outstretched_arm, oyama_mahiro, pink_hair, reaching, reaching_towards_viewer, school_swimsuit, smile, solo, strap_slip, swimsuit, v, wasabiyoukan