Illustration Friday: Muddy

Here were are at the end of our "Muddy" week and I've only just completed my entry for Illustration Friday due to technical problems with my computer.
I've noticed a few illustrators have drawn pigs in mud for this topic, which is only natural. However, my excuse is that the pig in this picture is Charlie; one of my oldest and best character creations - and he was due for a new outing!