Just thought I'd partake in the challenge.
Took a while to decide, but I settled with doing 2D for my entry. After working with 3D all day, I like to illustrate in 2D as a way to relax.
I have never taken part in a challenge like this before, but I reckon it will be a good motivation to illustrate more and often.
The concept is simple, a group of explorers explores a mysterious clockwork forest that was discovered in the estate of a deceased inventor and all around eccentric, and runs into something they weren't expecting.

Doodling my way to a composition/colour scheme.