https://telegra.ph/Bookingsuite-%E7%9A%84%E5%85%A8%E9%9D%A2%E9%9A%B1%E7%A7%81%E6%AC%8A%E8%81%B2%E6%98%8E-11-20-10
The best mom of the bride dresses for black tie or more formal type weddings will naturally be longer, most likely ground size.