A spiral in the center.

I tried to move the spiral center off the canvas center, but that did not seem to add interest. So this time I stayed with my initial dead-center instinct.

Similar to Monochrome #13. Less density and the spiral is off-center.

No more words from me. If you have been following along you can add your own. I feel that I am either repeating myself or just stating the obvious at this point.

Here the focus is provided by the illusion of a singularity or event horizon in the upper right.

What? You decide.