Moved our wedding, need a new dress! Which one?

We decided to move our fall wedding to next month! We’re only going to invite our immediate family. It’s going to be on July 4th and it’s going to be in my fiancé’s parents backyard. We live in California, so we expect it to be hot! I found these dresses and they’re all under $1,000! I can’t decide which one to buy, though, and I would love your opinions.

#1: $850

#2: $430

#3: $400

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