Katie (along with Kristina) is very hard to age, because she's obviously not looked after her skin, which automatically makes her look older than she is (plus the fact that she dresses like some 1980s Sloane). She has a typically dry flaky 'English' skin, inclined to redness (showing sensitivity) - this needs careful attention, but unfortunately many of the type of women who have this skin type poo-poo sensible things like moisturiser, and just go out and face the elements after nothing more than a good wash. If you think she looks old now, wait until she's about 50 (and then it will be way, way too late).