If you want to add some detail to your bun style, then a braided head band is a great way to start. It's a great look to try out if you're wearing a plain outfit as it will give your overall look some more detail and interest.
The braided head band works particularly well will with a low bun and a centre part. It's the perfect look for showing off your beauty look as it frames the face nicely. It looks neater when the hair is straight so apply some straightening cream before your blow dry. To soften your look, pull some strands of hair loose at the front of your head to frame your face. If you want to mix the look up a bit, try pulling your hair into a ponytail instead of a bun.