The most important factor in any clothing choice for women is style. The style of your clothing can make or break and outfit, so it is important to find something that is not only on trend, but something truly flattering for you.
This is often where people require the most guidance during the selection process. Knowledge of where you going and what you like or don't like can often be the best way to inform the style of your clothes.
The best way to know exactly what will suit you is simply try different styles, as what looks good on one person may not be flattering on another. This where getting a consultation from someone who knows fashion can be immeasurably helpful in helping you make the right choice.