Really cool model Marc, the lighting is a little bit too flat for me, but it's just a matter of taste.
Are you using a normal map for the black body part ?
Yes It's a normal map from Zbrush for the black body part.
I'm still learning in the rendering department, especially concerning Hdr Lightning.
It Looks ok to me though, but I imagine you could make it a lot better!
Well normal maps are looking really great in octane then !
And I didn't mean I could do better with only hdr maps for the lighting ;) (I'm just a modeler).
