This year I decided to enter a caricature of Rupert Murdoch who, in 2011, fell waaaay from grace and was whittled down to a blubbering old man in front of the world.
As always, tried a different process for this piece with mixed results. This time I started off with a sketch of basic shapes and lines and worked out my key exaggeration points. Then straight to Zbrush where I quickly sculpted his head to get information about lighting and form. Finally off to painter where I used the render from 3D and painted it in 2D. So you could say it was a caricature on top of a caricature on top of a caricature?
Others than my first initial sketch, photographic reference from that point was rarely used. Whether that was a good idea or not, I'm not sure, but I definitely learnt a lot about the advantages and disadvantages.
Make sure you get down the exhibition wherever you are in Australia! Lots of great entries.