Invited to a formal gala night—should I wear my short or long dress?

One of my best friends and I were invited to a gala night. We have to dress up formally. I have two formal dresses.

one is short sleeved and sequins around the bust, with a tulle skirt, dark blue. The other is long sleeved lace, with a floor length tulle skirt. Dark blue. Which should I wear?

I don’t really know how this happened but it did. I’m on the guest list.

Invited to a formal gala night—should I wear my short or long dress?
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