Under Utilized Color

I think gray is an under used color sometimes.  I find myself going to black or brown as my chosen neutral, but gray can be really interesting.  So, I tried to include it in my next couple cards.  Here's the first:

Supplies
Stamps: A Muse cake (I think a prototype that I got at a sale they had last fall), "Do I smell cake?" from The Cat's Pajamas, and on the inside "Happy Birthday" from Impress
Paper: A Muse's pink gingham and white card with pink dots
Ribbon: A Muse's grosgrain stitch in Slate
Other: Copic Markers, Yellow Stickles, and Spica Glitter Pens