Today I got it in my head to try reproducing a photo of Boots in the flowerpot using charcoal pencils. Charcoal and sketching are new for me and I wasn't entirely displeased with the result, but neither was I entirely satisfied. He seemed so scowly and angry, which wasn't really at all his mood.
I then decided to try another approach, using photoshop to "sketch" him. I've posted both.