I took a look, then came back later and took another look, and I would have 
to agree with Rick.  #23 looks best to me, especially if you're looking for 
shiny leather.

> pigment { rgb 0 }

I've found that I get better results when I use a very small RGB value, 
rather than 0.  You might want to experiment with that as well.  RGB 0 can 
look very strange when placed with other objects, in my experience.  Perhaps 
something like "rgb <0.001, 0.001, 0.001>" or for a slightly bluish tint 
"rgb <0.001, 0.001, 0.003>"

> diffuse 1
> reflection { .075 .15 fresnel metallic 0 }

Jaime recently mentioned "diffuse + reflection = 1".  From looking at some 
of his code, it appears that he always uses the first reflection component, 
which would give you a diffuse of 0.925.  Not a huge difference, but it 
might make a subtle difference.

Would the bottom (base?) of the shoe have a different specular component?

Just some thoughts.

-- 
Jeremy
www.beantoad.com

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