It was a warm sunny day again today, & I couldn't see staying inside, so I took a piece of cloth, & my color box, of pens & crayons, & did some doodling! Here are the results.
I saw a short demo on making things appear 3D on Facebook somewhere, & decided I had to play with it.
The plaid may be a bit carried away, but it was fun.
The contrast of light & dark seems more effective, than those with the more subtle contrast.