1girl, arms_behind_head, blush, bottomless, breasts, clenched_teeth, cowboy_shot, crop_top, crop_top_overhang, greyscale, groin, huge_breasts, long_hair, long_sleeves, looking_at_viewer, monochrome, navel, neckerchief, school_uniform, serafuku, shirt, simple_background, solo, teeth, white_background