Help me pick out my wedding shoes! I got the dress below:

Our wedding is at a brewery. So it's casual. The decor is going to be wooden tables with no table cloths and black & white striped table runners and coral / citrus colored flowers, sort of like:

I have several pairs already that I think I'll wear. I have an appointment this weekend to pick accessories and I want to figure out what shoes I'll wear... because it's bright colors & stripes, I'm inclined to do something a little more whimsical. So I have 2 pairs of multi-colored glittery shoes.... which do you like better?

Slingbacks

or pumps?

PS - I got both those pairs of Kate Spade shoes for $50. FIFTY DOLLARS. Insane.

OR... I have a more classic pair of shoes that I bought specifically for the wedding, and they are classy as HELL:

TELL ME ALL YOUR THOUGHTS AND FEELINGS ON THIS MATTER OF INCREDIBLE IMPORTANCE.