Projet colony - Illustration & Asset

Part of a school project set in a neo conquistador universe, where the player explore a new planet in research of gold, facing a group of natives not so happy about them being here. (https://www.artstation.com/artwork/lPmno) https://www.artstation.com/artwork/Zv4W1

Based on the character and creature design I already did for that project (https://www.artstation.com/artwork/lPmno https://www.artstation.com/artwork/Zv4W1 ), I created some assets and an illustration.
The assets are concepts for some ruins venered by the natives, they are mysterious and nobody is sure of their purpose