Played around with proportions a bit and added a layer of ambient occlusion to the diffuse. What do you mean, bake in lighting? Do you mean set up lighting in the scene and then render it on top of the diffuse?
Added a bit more grime to the diffuse, and started working the specular. The lighting seems to wash out my texture a bit, making the smaller details less apparent. Is that inherent in lighting or is it simply modo?
you could bake it or just paint it in. I think God was just saying to figure out where he is, and then make sure that some of his surrounding environment's color is in the diffuse (mars is famous for it's red dust that ends up coating everything)
I like it, its fun, but where is he? Is he on mars? Id love to see some bounce lighting baked in to the diffuse. For mars id make the ground a darker red/brown, and the sky a yellow/orange/brown. Then make sure to give him a environment map for the glass.