I modeled the Armaterradon creature for Grim Tranquility, the debut title from Poorly Timed Games. After I finished this model we switched the art style from stylized PBR to toony flat-shaded. Images show the original PBR version, except in-game images show the toony shaders.
This was the first character I created for this game, and it was somewhat early in the game's overall development, so figuring out the process included some great back-and-forth with the Concept Artist Rowan Sherwin and Lead 3D Artist Helmut Stark. The final model ended up looking a bit different than the original concept but that was an intentional result of collaboration and refinement. We discussed animals to use as reference, including brachiosaurus for the anatomy and anemones and jellyfish for the skin.
Concept Artist: Rowan Sherwin https://gryphonshifter.artstation.com/
Lead 3D Artist: Helmut Stark https://helmutstark.artstation.com/