Monster Trucks - Alternate Creature Concepts

Hi Everyone!
I had a lot of fun coming up with all sorts of variations for the whimsical character "Creech" in Paramount Animation's "Monster Trucks!"
This was a few color explorations and the original sketch of an alternate creature character from an earlier design phase as a sort of subterranean mammalian species with geode-like plates that can be maneuvered around their body as makeshift armor plating.