low back maxi dress Shona Joy La Lune in White This super casual maxi features an open back with an elastic waistband....deep V neck halter top BHLDN Draped Low-Back Maxi Dress

The ceremony is actually the easiest act for the dress the robe covers most of it

Sometimes (but keep in mind WOTC makes TopDeck)

With an eye-catching sequin print from the corset-style bodice to the hem, this short rose gold party dress is ready to shine at prom, sweet-16 parties, and lots of other events

Might be ok, but Id suggest a loafer with a more casual shape wider, rounder rather than putting on a chunky sole On brown shoes being the same as the suit, yes that can be an issue but see the points in this article for ways to mitigate it

Curve neckline

Best for those looking to curate a sleek, more contemporary aesthetic, the plinth base and brass hardware continue the streamlined silhouette