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My girls wore knee length dresses and I still didn't notice their shoes lol. Honestly, nude, rose gold, and gold are probably going to photograph pretty similarly so even if they wear a variety, it'll all look cohesive.
I would try to match with the metal accent tones in the wedding. Most of my metals are silver and platinum, so my girls are wearing silver shoes with slate blue dresses. Then it depends on what color jewelry they are going to wear with the gown. If you are that matchy. If not, nude is good. Nude goes with everything.