SierraIf Sienna is the cool girl, Sierra is her outrageously glam sister who shows up late and still steals the spotlight. Shes loud in all the best ways. A fitted white mini with a high neckline, long sleeves, and the kind of detail you dont forget. Sequins, pearls, feathers everywhere. Her sleeves and hem are trimmed with soft, floaty feathers that move with you (and demand their own camera roll), while the dress itself is fully encrusted with sparkle.