Now the armor I've been designing has started to come together as more purposeful uses. I broken apart what is a "evil" helmet, vs good guys. The material (bright shinny/dark muted) will also say that but I think the form should indicate alignment as well as purpose. Archers will have one type of helmet vs pikeman etc.
Clean lines, and more traditional shapes will be for the good guys.

 Spikes and horns will be the visual style of the armor on enemies.

My initial design for the Necromancer didn't have a helmet but I think it will help for one particular ending, so I've changed the design a bit... altho this is all little more than 3D sketches. There's a lot of work to get each of these game ready.