Black tie optional destination wedding guest dress

Hello! So I have a destination wedding in a couple of months, the dress code is black tie optional. I was actually able to buy this dress used at a huge discount and I’m so excited because it was a great find and I feel lovely in it, but now I’m worried it’s too much for a black tie optional wedding, so I’d love other peoples advice! I’ve never been to a black tie optional wedding so I’m nervous that I won’t dress properly. I also have some black tie proper weddings coming up, so when I bought this my goal was to be able to wear it to the fancier weddings I’ll be attending. Thank you!!!