KotobukiNatsumi, 1girl, solo, long hair, breasts, looking at viewer, blue eyes, skirt, black hair, bow, navel, school uniform, collarbone, short sleeves, pleated skirt, serafuku, midriff, metro wagon, sitting, :t, hands on knees

lowres, worst quality, low quality, low score, bad score, blurry, ugly, hooded eyes, bad anatomy, bad hands, signature, watermarks, ugly, imperfect eyes, skewed eyes, unnatural face, unnatural body, error, extra limb, missing limbs, painting by bad-artist,