I'm still playing with some simple designs and also with the "envelope doodle" of a few posts back. I called it "envelope doodle" because, it's a doodle that I used to do (I think in middle school every time we were given graph paper) and it's made up of a bunch of lines that form the envelope of a curve.
Both the first (the one made of squares at the top of the post) and last (the one below on the right) design look like standard tiles that you might find on any floor. Some family resemblance might be clear, but it is a little surprising that both are stages in the same series.
