Bay Area photographers Greg Lorenz and Kim Avelar specialize in tricking the eye, in creating images that appear to be real but couldn't possibly exist. In their world, woodpeckers have drill bits for beaks; barracudas cruise the deep with submarine propellers; plants spread solar panels instead of leaves.

And clouds are launched with just a brushstroke and a stepladder.

Although this whimsical scene looks like a clever trick of perspective, it's actually a carefully constructed composite image – a specialty of the husband-and-wife duo. The background image of field and sky was taken on a road trip in Montana. The ladder and model were shot later, using the same 24mm lens under similar outdoor lighting conditions, and merged with the first image via Photoshop...