Plumbob Tea Society has a beautiful wedding set:
https://plumbobteasociety.tumblr.com/post/170874771645/rustic-romance-stuff-for-sims-4-the-love-child
https://cakenoodles.tumblr.com/post/171797611991/im-aliveee-ive-been-gone-for-5-days-but-in
https://nolan-sims.tumblr.com/post/132545015578/nolan-sims-here-after-seeing-this-post-by
https://zeussim.tumblr.com/post/171629543562/estrella-gowns
http://pickypikachu.blogspot.com/2015/02/queen-of-lace-wedding-dress.html
http://simsfashion01.blogspot.com.br/search/label/wedding%20Dress
https://five5cats.tumblr.com/post/158304546775/5cafodlr2015-carmen-gown