Sparkly Off the Shoulder Peacock Blue Ruffle Long Prom Dress with Appl formalgowns Luxury Pink Feather Evening Dress with Mirror Beaded Bodice LA73008 SERENE HILL Peacock cocktail dress could do without the feathers on the shoulder, but I would wear this for a fancy occasion. Peacock feather dresses are colorful and beautiful! They have shiny feathers with bright blues, greens, and purples. When you wear a peacock dress, you look elegant like a graceful bird showing its