This one is for sale by TheWitcheryVintage on Etsy. According to the information it dates from the 30s/40s, and has the elegance you see from that time period.
This is a wedding dress from the 70s by posypower on Etsy. It would be lovely for a wedding in nature.
This is a stunning vintage beaded wedding gown by Artemis53 on Zibbet. Almost makes me want to get married again, but to the same guy of course.