I found this challenge very interesting and informative. I watched the video (link on DragonsDream TIO blog - see side bar) a few times and then sorted my stamps out, ink pads etc and had a go. My first effort was the one on the right. I used tattered rose DI for my main colour and scattered straw, bundled sage, dried marigold and shabby shutters for the overstamp. Unfortunately, I forgot to overstamp the background texture before overstamping the flowers. My second attempt is on the left hand side. This time the colours used were tattered rose as before, but then tumbled glass, dusty concord, scattered straw and bundled sage for the overstamped flowers. I think quite a bit of research is needed to find which colours go best together as the most unlikely colours take over when spritzing the stamp.
My stamps were a Clarity poetry stamp embossed in white, a Canvas background stamp from Stampin' Up and Queen Anne's Lace stamp from Penny Black.