First [serious] experiments with "zero texture" meshes in UE5

First tests of some ideas with UE5. I'm an experienced gamedev and game engine builder but have never worked with Unreal. I wanted to see if I could model my own objects in Blender that were "material only" (no UV textures) and make an aesthetically pleasing art style. While it's still fairly barebones, I'm pleased with how this look is coming together.

The look is basically meshes with a surface material that has low metallic and high roughness properties. Then there are two post process materials for cel shading and outlining. I made both materials Lerp their result with the main render buffer so you can control the "mix" of the shader output and the original scene buffer.