I stamped my dandelion on a piece of white cardstock that I had previously sprayed with turquoise shimmer mist, and then chalked over to make it a little darker. The shimmer stills shows through, although you can't tell in the pic. I then heat embossed the dandelion and colored the stem and center with a Copic marker.
Used Spellbinder scalloped rectangle to cut out my window, stamped Thanks in black and heat embossed, then mounted the image behind the window, and covered the back with the rest of the shimmery cs, which had flowers and butterflies silhouettes in white from masking, also previously done with the shimmer mist.
Also entering this card here: http://stampinfortheweekend.blogspot.com/ - Challenge 3-photo-color inspiration