Insane for Renaissance

If Einstein's line about insanity (expecting different results from doing the same thing repeatedly) is true, then I am insane for Renaissance tiles.

I love the variety and depth these Zentangle® tiles provide. It is wonderfully fun to use different pens and pencils to achieve such interesting and vintage looking pieces. 

I've always been inspired by the art of Dr. Meredith Yuhas, CZT. Some of her recent Renaissance work inspired these in me: