1girl apron arm_up armpits ass bare_arms bare_shoulders barefoot blue_eyes blush bottomless bow bra braid breasts commentary_request covered_nipples full_body green_bow grey_hair hair_bow half-closed_eyes highres izayoi_sakuya maid_apron maid_headdress medium_breasts non_(z-art) one-hour_drawing_challenge shadow short_hair simple_background solo standing thighs touhou underwear undone_bra waist_apron white_apron white_background white_bra