Posted on October 19, 2016December 30, 2016 By admin3Derwent Tinted Charcoal – Cat’s Eye Learn how to draw with lessons from Derwent! In this clip we’ll show you how to draws a cat’s eye using Compressed Charcoal Blocks, Charcoal Pencils & Tinted Charcoal Pencils on the Derwent sketch pads. Running time approx. 14 minutes.