#1 The Dress

To pull off this look, you'll need a beautiful white dress. While it won't work if it's really form-fitting, that doesn't mean you can't show some skin. Look at how much leg Roselyn is showing. Plus, she's got the sexy cutout neckline. You could go with a one-shoulder neckline or something that drapes or goes into a deep V in the front or back, just so long as the dress has a bit of airiness to it.