This technique involves placing crinkled plastic wrap over a wet watercolor background. Results can vary greatly.
My creations look nothing like Jennifer's, but I'll keep trying. My first card turned out really light and I didn't think it would work, so I tried on with more intense colors. That one looked unusable.
I managed to add some stamps to create an acceptable card. However, my darker creations gave me a lot of challenges.
I stamped some storm clouds over the upper section, then a row of palm trees in the lower portion. I didn't like it at all. Then, I pulled out my Twinkling H2O watercolors and added some glowing sunny areas to create a sunset. The sentiment seemed appropriate. This image doesn't show the real glow, so I took a flash photo to show how shiny it really appears.
In real life, the image is somewhere between these two photos.