Has anyone figured out a nice set of materials for all the zones of an V4 Eye (Pupil, Iris, Tear, Sclera ... ) or has a suggestion?

I'm struggling here bit =(

I thought I would leave it very simple in Poser (P2010) in the various zones, while just plugging an Image_map to the Diffuse_Color channel and one to the Bump. No other nodes in use.

Thanks.