I'm in need a few more thank you cards, so this is what I came up with.
I used a Heidi Swapp stencil for the honeycomb and then the Flower Patch stamps with the Flower Fair matching dies to create my flower and leaves. I had to do some fussy cutting to get the smaller pieces of the larger flower, but I think it was worth it for some dimension. It's finished off with a sweep of Old Olive from the Gorgeous Grunge set and a sentiment from A Dozen Thoughts.
To keep the inside of my card interesting, I just used the same stencil down the right side. It's light enough that it won't interfere with any sentiment that I want to write inside later.
Stamps: Flower Patch, Gorgeous Grunge, A Dozen Thoughts
Ink: Old Olive, Crushed Curry, Pacific Point
Paper: Old Olive, Crushed Curry, Whisper White
Accents: Homemade Candy Dot
Miscellaneous: Heidi Swapp Honeycomb Stencil