Tachikoma
I went back and binged the entirety of Ghost in the Shell's animated content: every movie, every episode of the TV runs, every OVA. Of course, the Tachikomas were my absolute favourite character(s). Had to have a go at creating one myself when I found out that the series used a 3D model.
A more realistic shader setup + a wireframe.
Using a toon shader to mimic cel shading, just like the anime.
Demonstration of the rig.