Thanks for the feedback, but I'm not looking for inspiration, I was just hoping to make one of the heraldry style images to see how my current idea will look
I just thought perhaps someone else might have tried to do the same and made more progress than I have; I've isolated all of the main armour plates so that I can recolour them, and removed iconography and such, but other areas are lot trickier to replace, like isolating all of the trim around the armour.