I don't know, Shooting Star. I dress kind of in an updated, classic way, with some nod to what's currently in fashion, but more to make sure I don't look like a dowdy old lady or an older person who is dressing "trashy."
I suggest you look at some J Crew, Gap, Banana Republic, Ann Taylor stuff on line. I buy all of my clothes at these places and they all have petite sizes. Some of the stuff is "too young," or just not my style, but you can get an idea and make it your own.
When I wear skirts, they are mostly pencil skirts, with a couple of mini skirts (not for work) thrown in. I wear a lot of cardigan sweaters, some classic, some with a more decorative look. This year, I bought a couple of "open" sweaters that I really like. Most of my dresses are from Athleta, wrap dresses, or slightly athletic looking. I suggest you look there, too. I wear my dresses with tights and boots in the winter. I don't do suits anymore, but I have a couple of more "modern" looking ones. As far as pants go, I have a bunch of wool straight leg pants in classic colors, as well as a variety of jeans in black and dark indigo. I like skinny leg, low waist jeans; I figure as long as I'm skinny enough to wear them, let other people talk. Also have some corduroy pants.