Janet's response echoes what I am thinking, Ket. Looking at the fun options you presented, I was thinking they aren't your usual spicy mix of colors. The gold ones seem a bit tame, style-wise, or maybe too refined for the dress and it's more playful feel.
I'm actually not put off by brown with navy. I could see bold, colorful jewelry off-setting the look nicely if you go with a sandal in the tan/brown family.
I see Miz Mooz and Jessica Simpson heeled sandals in your Finds that I think could work well.