1girl absurdres barefoot beach black_hair blue_theme blue_wetsuit bodysuit diving_suit facing_away from_behind full_body highres holding holding_surfboard nisikaze ocean original solo standing surfboard twintails water wetsuit windsurfing  1girl adjusting_clothes blue_eyes blue_hair blue_skirt bow bowtie dutch_angle highres looking_at_viewer medium_hair miniskirt nisikaze original outdoors partially_submerged pleated_skirt red_bow red_bowtie shirt skirt solo water white_shirt