To those who thinks the dress is blown. There is a big difference between really bright white, and blown as if there is no more information. Here is the photo with exposure dialed down and this is JPEG!
Now here is my edit.. I made it black and white because I only have JPEG.
Perhaps OP could have made them face other direction, use off camera flash, reflector, etc. but I think the biggest downfall is the editing. The indoor photos look pretty good. Given that this is OP's SECOND wedding AS SECOND shooter, he did pretty darn good job. If OP had tweaked the RAW better, use warmer WB, I am sure most of you would have said more positive things.