Here's more experimentation with digital Colorforms, this time using grey ovals as the fourth shape. Don't look too closely at the back-to-front layering, it doesn't make too much sense. Working with Photoshop as a geometric design generator is more difficult than you might think as it is hard to create shapes in the "right" size and the controls are tiny even on a big screen, and I often forget what layer I am working on. I suppose I could do it the old fashioned Mid-Century Abstract style and do these with watercolor or acrylic but that would be quite a job. At least there are no wine barrels in this one.
Photoshop, 5" x 5", May 20, 2018.