WIP Roboute Guilliman - with NMM Gold Armour

I thought it was time to share my WIP Roboute Guilliman, Seeing now that he is the "Emperor of mankind" he should be wearing his new golden amour.  

I'm still trying to perfect the NMM (non-metalic-metals), I have tried 3 different variations on my Renegade Knights, I thought this style or my 4th would suit Guilliman best.  Your thoughts and comments are most welcome :)

World Eaters Renegade Knight

Death Guard Renegade Knight

Black Legion Renegade Knight (sorry for the rubbish picture)