Too much text. I know you want to get your app out and screenshots are in the works, but it still must be said:
show don't tell.
When I sign up and enter the admin I am lost. Takes me a while to figure out what to do. A guided quickstart guide would be helpful. Navigation menus that are directed either by arrows or numbers also help. I suppose if I already paid then I will take the time to fill in all that stuff. But since I didn't pay it's very hard for me to care about filling in information. Therefore you have to make it as intuitive, easy, and guided as possible. Reward the user visually.
Best advice is to seek out brides/grooms sit them down and watch them use your app. Do this over and over. Chances are your app will be very different than what it is now.
I like the feel and the domain name is good. Congrats on launching, good luck!