Finished off Mr. Tortoise, finally.
I ditched final gather in favour of an ambient light with occlusion and did a little base very much in the style of the one I did for the Rhino. There's an unfortunate shadow that makes the cactus fruit look a bit 2d but other than that I can't be stuffed fixing it up any more. I have a few days off and I don't want to be fixing this piece the whole time. Depth opf field was done with the Bokeh shader for mental ray, which multiplied the render time by a factor of 5 or something.
A sodding merry Xmas to all!