This wedding dress is the Willow style by Monique Lhuillier from the 2020 collection. I bought this dress in 2021, it has been professionally cleaned and is unaltered. I would describe it as a Silk white/nude embroidered appliqué soft mermaid gown with sheer bodice and removable off-the-shoulder cap sleeves.
Traine can be bustled. There is a colorcoding attached to the train which makes the bustle easy.
It is a very comfortable dress to dance and move around.