realistic, realism, photorealism, photo-realistic, high contrast, (photorealistic:1.4), (perfect female figure), 8k high definition detailed realistic, (best quality, masterpiece:1.2),  photon mapping, radiosity, physically-based rendering, best quality, highly detailed, 1girl, sfcammy, (ahoge), upper body,  looking at the viewer, from behind, looking back, looking at the viewer, day, street,