There’s something hypnotizing about spirals. Even when I start with a perfectly good “straight” photo of a spiral, I feel compelled to extend the spiral in Photoshop. I guess I may as well accept that resistance to spirals is futile.
The compositing technique I used to make this image involved making both large and small copies of the original photo, pretty full explained in World without End.
Related images: Endless Stair, Spirals (shell and stair), Spirals (shell composite).