I don't know why it's said to be religion-specific; the only thing I saw even "ethnic," if you want to call it that, was a hijabb on one bride. Some are :/ but there're quite a few really beautiful ones.
30 sublimes mariées portant le hijab le jour de leur noce
30 sublimes mariées portant le hijab le jour de leur noce - page 5
48+ Beautiful Modern Vintage Wedding Dresses
A heartfelt budget wedding up on the blog
everlytrue: “[Ersa Atelier | Martha Stewart Weddings] ”