I've been planning to do something like this for a while now but kept putting it off until I got better at Photoshop. But I guess its good because I saved this idea for the Terraspace Competition.

Although the main goal of the contest is realism, I decided to put some more meaning into it rather than it just being a pretty picture. In order to capture the beauty of nature from the deepest ocean to the stars above, I made it so both the top and bottom areas share similar features such as colour and detail.
For example, stars can be found in the shallows aswell as the sky.
Both the top and bottom were given cool calming blue colours to give a relaxing effect while the centre is made bright orange which draws the eye away from one area and leads it to the next. While the island serves as a terminal between two different, yet similar worlds.

This has taken far longer to create anything else in my gallery. Some credit for stock photos go to Mayang and Image*After. Created using Terragen and Photoshop.
Original Terragen render here [link]

Copyrighted material. It may look nice but don't even think abour ripping