I asked a friend (Mulo) to recreate one of his illustration in 3D. So, i select one of latest creation (image below).

I started by modelling the base model of the seat (which i think the original reference is the aircraft ejection seat). Some of the parts added later are from kitbash all around internet.

Then, I modeled the character (low-poly of course) and textured using Substance Painter.

I rendered three different lighting setup just to make sure which one is more suitable for the final render.

Below is the final result. Rendered using Blender 2.81 (Eevee Render).