This article contains unmarked spoilers. Players new to the game would want to avoid or be cautious toward this article.
Many pieces of Concept Art have been created by the developers of Subnautica. There is Concept Art for biomes, vehicles, life forms and Alien Technology. Cory Strader, who is employed as the Art Director at Unknown Worlds Entertainment, has created much of the Concept Art shown below. However many initial designs were also created by Pat Presley, who is a freelance artist also known for his work on the Star Wars: The Clone Wars series.
Concept Art is made to showcase future features of games, although the designs are subject to change during the course of development. Not everything that is shown in Concept Art is guaranteed to make it into the game.