What makes a woman perfect in her appearance is her attire at the appropriate occasion. One of the most commonly observed facts is that a woman who dresses properly for a formal occasion would not have any problem to dress appropriately for a casual party as she goes out for a shopping or hanging out with her friends.
The reason is simply that she knows how to dress right during casual and formal. Sadly, not all women know how to choose their appropriate clothes for the events. For example you would sometimes find some women whose dress is short and T-shirt when attending a religious function. These are women who are wearer for fashion chic and at the end put themselves in an overdressing manner. These women may not know the difference between wearing for your own comfort and snuggling to be fit in the clothes that are not you. I feel pity for such women who do not realize this folly.
A perfect dresser is the one who understands how to dress appropriately for any occasion. This involves careful selection of color, texture and style of your clothing. An evening wear will definitely be different from a day wear of course. Similarly, women's clothes for a formal occasion is different blend from a casual wear. One lady that I truly liked for her sense of fashion style was the late Lady Diana Spencer, who always appeared to dress appropriately in any occasions. This is what we call blending the style in fashion with the events.
There are so many terms in fashion and style need to discover and understand. As variety of magazines and websites promoting the latest fashion in women's designer clothing you should be wise on how to choose.