Ok  I will admit.  I did this after I watched part three,  Using the paint within the circles of part 2.  I was painting along and realized I only had circles.  I had planned to squiggle a bit, but got excited about painting.  Then I watched the third abstract lesson you posted and a spark lit up - lines! Pen! So I did.  I like this one quite well.  I’m looking forward to more experimenting!  (I have a page of squares started. Not sure where to go with it yet, but it is a process!)