My second stab at using real dog fur, but this time I used a lot more as I was given quite a bit of it. So about 75% of it is actually poodle fur. I mixed the fur with some natural sheep wool (that happened to match perfectly) and I used it for the base of the sculpture. Then I used just the fur over the top, on the ears and on top of the head.
Here is the fur I was given (in the bag) and the sheep wool:
And here is the finished sculpture:
And the actual poodle:
I'm quite pleased with how it turned out.