((masterpiece)),(best quality),official art,extremely detailed CG,unity 8k wallpaper,ultra detailed,beautiful detailed eyes,extremely detailed face,outdoors,1girl,solo,cowboy shot,looking at viewer,facing viewer,nubile,frown,Sakaki Yumiko,very long hair,black hair,bangs,purple eyes,school uniform,collared shirt,white collared,white shirt,short sleeves,blue necktie,large breasts,black socks,loafers,<lora:Sakaki Yumiko(gk)>,