1girl arms behind back artist name black ribbon blue hair blush bra breasts closed eyes collarbone commentary request cropped legs ebifurya flower gradient hair hair between eyes hair flaps hair flower hair ornament hair ribbon hairclip harusame (kancolle) highres kantai collection leaning forward long hair medium breasts multicolored hair navel one-hour drawing challenge open mouth panties pink bra pink hair pink panties ribbon side ponytail sidelocks simple background solo sweat thighs twitter username underwear underwear only white background