Contour Drawing

For my on-line class, we've been spending the last several days doing contour drawing and blind contour drawing and thinking about both positive and negative space. Some people were posting homework drawings of faces and other things with contour lines that make the drawing look more 3D. This is a skill that I would like to work on, since there are not hard edges when you do this. I did my official homework earlier today. Tonight, I did some unofficial homework and did some contour drawings of a sleeping cat. I played with contour lines within the drawing of the cat to get the 3D stuff going. After that, I tried something more simple, since I need to walk before I try to run.  

Behold, here is part of a cat's leg and paw.