having a square jaw as we age can go one way or the other. It can end up looking even better or more chiseled and beautiful, which will give a woman a highly sophisticated and feminine look or it will end up looking masculine if the facial muscles become very pronounced with the loss of facial fat. Its hard to tell with Kate Moss in many situations. Sometimes her bone structure is enviable because it is so intricately contoured at others it looks disproportional. like i said, having a square jaw myself, I have a love-hate relationship with it. Generally square jaw women look better at certain angles especially when lifting the jaw to ostentate the nice jaw line or when looking down and tilting their heads. From full frontal view, sadly some of them don' look good in pictures especially if the picture is taken from up close.