“Crop Circles” drawing in progress

I’m currently working on “Crop Circles” which is loosely inspired by the subject of the title. My color palette is greens and earth tones. The images are work in progress. Four major circular figures running down the center have been finished.

Close up of part of the triangle configuration.
Close up of part of the triangle configuration.
Close up of green circle.
Close up of green circle.
Overview of work to date on Crop Circle drawing.
Overview of work to date on Crop Circle drawing.