What you see here is just the chassis - the tracks, guns, etc. are separate objects and will get their own graphics. The blue spots indicate where "active" objects (primarily weapons) will go.

I mostly drew inspiration from WWI-era tanks for the design - boxy look, riveted armor, etc. This is an experimental weapon, and I wanted its appearance to reflect that.

Not sure about the level of detail on this, whether it's too visually busy or too sparse or just right.