Seemingly plucked from a beautiful fairy tale, this floral-print long purple prom dress is simply gorgeous. With a beautiful purple floral print from the off-the-shoulder ruffled neckline to the hem, this long purple evening gown is a romantic choice for prom, military balls, and other black-tie events. A corset-style bodice wraps around to the back of this off-the-shoulder long purple formal dress, while the multi-layered long skirt flows to the floor in a gauzy a-line shape that flatters…