Need opinions on BM dress color combinations! w/poll... **UPDATED WITH NEW PIC.

We're going to use Bill Levkoff #966 in Satin (thanks everyone who said that satin WAS okay for July!)

Now, here's the question...
What color should the sash be?

Here's the dress (in the sample color... NOT the color we're going to use).



We're going to use a pale pink for the main color of the dress, and I'm unsure of what color to make the sash.

I like the idea of white, to match my wedding dress (Justina McCaffrey dress in diamond white).

I also like the idea of black, to match the guy's tuxes.

Someone had suggested to just keep the dress one color, so make the sash the same pink... but I feel like this takes away from the fun of the dress!

I'd love to hear if you have any other suggestions. Please keep in mind that my flowers are going to be very pale pinks and whites (no dark pink!)

THANKS SO MUCH!

ETA:
Here is a picture of a different dress (WE ARE NOT USING THIS DRESS), just so you can see how the combination of pink and black look together. [Don't mind the face... or lack thereof! I just don't want to put my BMs face on here without telling her!]