I used the soon to be released set Swing Set for this creation! After stamping with permanent brown ink, I picked up a waterbrush and started coloring! While most of my color was picked up with an aqua painter from a palette (from ink pads), I did stamp the grass onto watercolor paper and then, for that watercolor look, ran over the image with a damp water brush!
Add some scallops, some sheer ribbon and mat it all up -- done!