I can't post pictures here but if you go to Agacistore.com and click on dresses. I think the first dress that comes up will look really cute. You can buy it in black or the color you'd like. With a really nice, flashy necklace.
I think it looks too party girl-ish for a wedding. If you like it so much, buy it for another occasion instead. I have to dress shop for my husband's brother's wedding, too. I'm not looking forward to it. lol
It looks like a party/clubbing dress, it doesn't look like a Weddinng outfit or formal at all. It seems too tight and unflattering aswel, you should have a look at more wedding attire and see what suits you.