This week’s challenge from I am the diva blog is to do a “monotangle” (use only one tangle) with Paradox, one of the tangles from the Zentangle creators, Rick and Maria (see this site for the original directions). Also, CZT, Margaret Bremner has posted a very helpful tutorial on using Paradox in many different ways. Thank you to both the diva, Laura, and Margaret for encouragement to use this great tangle.
Paradox is a tangle I enjoy doing. It was a little challenging at first, but once you get the idea, it flows, at least it does for me. I enjoy the simplicity of all those straight lines. Yet, it ends up having a very flowing, curvy look. Such is the paradox!
Copper Country Tangles 
This is lovely, very tactile, lots of depth, it looks as if each column is stretching under tension.
Excellent and love the addition of your shading!
Wonderful! The shading really adds to it!
Isn’t this a cool pattern? You’re so consistent with your direction and your lines – I can tell you are conscious of what you’re doing (unlike me, I just started doing lines and had no clue about columns vs fans until I read the other posts). As the others mentioned, your shading is lovely, it really adds dimensionality to it. Put me down as one of your biggest fans!