The cavern

This is my first time trying out 3D environment rendering but would like to learn about the process and create something from this opportunity and widen my skillsets.

I'm making a world ran by Leviathans and the main character's ship crashes into a cavern that’s generally used for leviathan egg nesting. This cavern is occupied by a colony of anthropomorphic creatures that built their home along with the leviathan eggs as protection against larger predators.

The aim is to make an aquatic-themed town that resides in a cavern with a system surrounding tending to the eggs to appease the leviathan parents. 

Here are my moodboards.

Here are some initial sketches I tried to get some ideation of the environment and try to build the story focus and flow for this project.