顔に土が付いているのは何故？

masterpiece, best quality, extremely detailed, 2000s animation, from above, 1girl, solo, kwaii, 17yo, petite, small breasts, squatting, paw pose, white blouse, light green vest, ribbon with bell, green plaids skirt, white frilled skirt, green stripe thighhighs, beautiful detailed face and eyes, smug, muddy face, brown long hair, hair intakes, ahoge, hair between eyes, green eyes, brown cat ears, fang, brown cat tail, mud on floor, fall down houseplant