anyone know the designer?

sunnilove

anyone know who makes this dress?

Classy_Dame_009

It's from someone who makes custom dresses and sells them on Etsy.  Their shop name is Wedding Dress Fantasy.  I don't see that style in their shop now, but this one looks very similar:

http://www.etsy.com/listing/60624735/custom-bridal-gown-dress-with-french 

You could maybe contact the seller and see if they would still make the one in the photo that you found.  Most of the etsy sellers do custom orders a lot.