I've worn some very dodgy clothes; not to weddings but that's more by luck than judgement.
I couldn't see anything wrong with Julia Roberts's outfit in Pretty Woman when it came out. I still can't, though I know she's playing a prostitute.
These days I'm more conservative - and older - so can't get away with ruched cut-out lycra and thigh boots.
I wince and smile in equal measure at seeing photos of my 20-something self in all my glory. And I'd do the same at a girl in similar clothes today. You're a long time old and the alternative is death.
I certainly wouldn't whinge about her five years later or say she looked like a prostitute.
How naive btw. IME many prostitutes dress very conservatively. That's how they are accepted in high-class bars.
Anyway, OP, your dress is a little out there but I like it.