With this board I went with a bit more muted color scheme to give it that upscale Spanish vibe. It still has bold pops of color, but compliments the overall look of the plaza and your dress!
I'd still use coral peonies and cool mint/sage succulents as your statement flowers, mixed in with blush and peach accent flowers. For the greenery I'll mix in dusty miller, silver dollar eucalyptus, and string of pearl succulents.
Centerpieces to be built in white washed/antique looking terra cotta pots. If we go this route there is a cool wholesale pottery store I'd like to take you to so you can pick them out.