>   Any improvement suggestions?


I think you need to work on the texture. The rust looks smooth and shiny.
You could make it rougher by adding a variation in the normal on a small
scale (maybe with the wrinkles or granite pattern but not scaled too big).
Maybe tighten the specular highlights. It might also help if you make it
look like small bits of the metal are "peeling" off; look at the small
hole-like things in http://www.eleganthack.com/archives/rust.jpg to see what
I mean. Sharp changes in the value of the normal pattern combined with
abrupt changes in pigment color can do that. These are just ideas, keep
tweaking it.

What is the chain for? What is the surface it's lying on and why is it
there? Right now I see an object, but if you answer these questions it might
look more like a "scene."

 - Slime
 [ http://www.slimeland.com/ ]

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