The problem with appearances is that all the expensive clothes, shoes, jewellery, makeup etc can only do so much if what they have to work on isn't in good shape.
Right now I know that my appearance isn't all that fab. I'm not in great shape and haven't been eating all that healthily for at least a couple of years.
If I wanted to improve my outward appearance I would not start with my wardrobe, I would start with getting back in the sort of shape I was in a few years ago when I was doing marathons and the like. You look and feel so much better regardless of what you are wearing.