Quote - I'd be interested to see what this process could do to a 3D CGI picture. If you think there's anything in my gallery that would prove instructive and interesting to others, then let's try it! I can always re-render to provide a larger image in a lossless format, which I imagine would be an advantage. I normally render at a size suitable for web posting, or a bit larger if I plan to do fine postwork.

'Leather and Chromium' would be the best bet.  "In The Park (part 2)" could be an alternative option. 

A bit of confusion... I'm not looking for practice so much as to help with any 100% finished images that you're proud of and want brought through one final stage.  So, then you'd also want to make any real calls...