Activity for Natalia

I cannot decide who I want as my maid of honor, I have 2 good friends. One is closer but I know she won't be of much help when it comes to planning (Bachelorette party) and she is pretty cheap...she is the type that has a problem with paying for...

Does anyone know were I can get this (or similar) dress? I have a grey color scheme but if anyone knows who makes this it would be very helpful