Those r really cute I would either try the Internet or a bridal shop ur best bet is to get them off the Internet the only problem with that is if u don't know ur bridesmaids sizes but try the site that u got the pics from
@Tiffany- i got the pic from another bride's blog post on this website. I am having to hardest time finding the actual company/designer who make this dress..
I would imagine it is just a plain black dress with the longer slip underneath that adds the color at the bottom. Most bridal shops offer the slip, you have to buy it seperately, usually about $20.00. Hope that helps! Good luck! :)
http://www.alfredangelo.com/collections/productdisplay.aspx?productID=707b85e7-8eb7-41ad-8b12-4e54980b26a2&categoryID=772f03c9-de43-4942-bfa0-da77e21ebd65&pg=0&colorId1=