About This Hairstyle: Back View Photo:
To get this look, you may want to start with second day hair as this will give you some more bend and make your hair easier to work with.
Create a deep side part, and pin one section to the side while you twist the other. On your other side, start at the front and by sections, twist your hair in a neat chignon so that it lays flat against your head. When you are finished twisting, secure this section at the back with some bobby pins.
After you do this, pull a section into your front so that you get the sexy sweeping bangs look that Sienna has here and run a flat iron over it to make it nice and straight. Then,take the other section of your hair then and wrap it into this section, and roll it into a sexy bun that you can pin at the nape of your neck. You may need to add a few extra bobby pins to secure the look, and finish the look with extra hold hair spray.