I decided to test other materials for my circle. This is the back side of canvas where I applied black gesso as the front side of the canvas is pre-gessoed white and I want to avoid a white ground for now. In the image above the canvas is resting on the floor allowing the gesso to dry. As it dried it soaked into the canvas in some areas and turned into a flat matte finish. I want a richer black so may try enamel paint.
Attached to the wall I can compare November's circle to this new one. I do like the richness of the brown paper... more experimentation is needed to satisfy my intent.