>>4182751It's female clothes, so I assume it's a girl.
>>4182752獣 (beast) and 獣人 (beastman) are old-fashioned and more literal. ケモノ is a modern word created 20+ years ago that specifically refers to furry. But there is an overlap because 獣人 is often used in Japanese games and fantasy to refer to monsters, and it was used at least 100 years ago in literature before anime existed.