Kings Canyon / I did the design for Kings Canyon National Park, a personal favorite, located in California near Sequoia National Park. You can read more about the project, see the other submissions, and purchase prints and postcards at TypeHike.com All proceeds are donated to the National Park Service.
The poster was designed using 3 colors. The background fabric was created overlaying the colors to create the lighter green texture. It was designed to be screenprinted on cream paper using only two layers, green and gray. I love the complexity and you can create with the limited palette.