Here's an impressive off-the-shoulder long a-line prom dress that is the ultimate show stopper for your big night. Whether you're going to prom, a fancy gala, or another formal event, this long ruffled prom ball gown is sure to elevate your evening look with a tiered long a-line skirt that is full, fluffy, and fabulous. With an off-the-shoulder embroidered corset-style bodice, this long a-line formal dress has a sheer waist that wraps around to the lace-up back, while ruffles adorn the…