It is a fishtail maxi dress for party,wedding or other formal occasions .I have seen popfas.com has the similar style .maybe you can check :European Sexy Black Transparent Tulle Bodycon Maxi Dress and Europe Sexy Goddess Style Fishtail Black/Silver Halter Dress .These are the dress title on popfas.com .
It seems like a custom made dress with a slight sweetheart shape in the front neckline and huge oval cutout at the back. It is a body con long gown dress made of a shimmery net fabric.
