Debian Symbol - Cycles Render

This is more of a Cycles test than anything, but I figured I’d post it here because I’m not 100% pleased with the quality.

I know this is a shocker, but the render it produced, is too smooth. I have a little bit of Depth of Field in there, and of course the material of the symbol is reflective/refractive.

What else can I do with it to make it look less CG-y? I was thinking maybe a floor texture of some sort, but I’m not sure what to make it.


And here’s a link to the raw file.