dress help

this is my dress

it's Casablanca 1992, sorry could'nt get closer to the back so you could see the details
under the bottons it has swarkovski crystals going all the way down to the train.
I originally ordred it with the botton closures but am thinking that I might like a corset back due to having large 'girls' and wanting to hold everything in better. Alsoi figured it would let a little room to breath as I have yet to loose the weight I need to!
what would you do?