I rendered the scene on 2 computers, using render layers and compositing in the node editor.
The 2 objects that I rendered seperately, obviously because of the large particle amounts, are the bunny and the grassy hill.
The grassy hill took 21 hours to complete render and I acccepted a sample pass of 250.
The rest of the scene was rendered with a sample pass of 1000.
As you can see, I used a focal point for the dept of view, but that caused several unwanted blurr effects, for example the rabbits head (where I put the FP) looks sharp, and the body of the rabbit looks blurred.
Please let me know what you think of my scene! Thanks.