Zentangle Challenge #311 - Circle Square String Theory

I've been absent from Laura's Diva Challenge (www.iamthedivaczt.blogspot.ca) for a few weeks, only because I've been concentrating on other things. I miss it and am going to try to make it a priority to do and comment on each week's challenge. This week's challenge is to use circles and squares as a string, and to me it's like going back to basics - this is often where I go when I'm stuck. I find that once I've done a string of geometric shapes, it's much easier for me to just fill in the shapes without much preplanning. It's very Zen for me and I'm often surprised at the result.