The 5th Weekly Zentangle Challenge was "Orbs". I was thrilled - I love circles. I seem to gravitate toward drawing tangles with circles quite frequently. So, I was up for this one.
Well as usual - the challenge tends to present itself as - a challenge! This time my challenge was the shading. I spent time looking at images of circles, spheres, and orbs on the internet to observe the shading of such creatures. So once again - this is a case of practice makes better!