Wedding guest dress help please

[GofE]

Hi.
I have a wedding next month and am struggling to find an outfit.

I’m very petite so looking for more fitted styles. No frills and puffyness.

struggling with where to look.
have tried self portrait, Victoria Beckham. Nothing really suitable.

any ideas gratefully received.
(budget up to £600)

thanks

Occasion dresses from The Fold?

Hi! following as I'm on a similar hunt! Did you end up buying something? ta!