I've really enjoyed playing with this stamp set, and love the simplicity of this layout.
I knew the moment I saw the sketch which stamps I was going to use for each element, the banner was a bit of a no brainer though!
I've complimented the Amazing Birthday stamp set with Gorgeous Grunge for a bit of background detail. It's probably not as Clean and Simple as the CAS challenge called for, but I love it! I hope you do too.
Oh, nearly forgot the colours then! I've used Delightful Dijon and Cucumber Crush.