Stage 1 : This example is done with Bryce software, but you can create similar effects with any other package which is designed for creating 3D landscapes. Start Bryce and create a new document. You may wish to begin with the sky or you can leave that until later.

Stage 2 : Add a ground plane (or water) and call up the "Materials Editor". From there you can load textures from the Mutations or Abstraction CD and map them onto the ground plane. For this example I've just used one texture (number 0578 from Mutation), but it's possible to mix a number of them together to make more complex patterns.

Stage 3 : Now add some land to your scene.. Again you can modify this in the "Terrain Editor" and even load textures to use for the shape of the land, but I've stuck with a basic random terrain here.

Stage 4 : Select your terrain object and call up the "Materials Editor" again, to wrap your land in a different texture. Try something wierd and have some fun here! You can overlay various images if you want to make something more complex.

Stage 5 : All that's left is to render your final scene. You may want to experiment with different textures and sky/lighting settings in order to achieve the result you are looking for, so save your document and try a few variations before deciding on a final image to use.