The Planet Motif
(Image Above) Raw image made in the fractal program, InkBlot Kaos
Perhaps the round, disk-like images have a special resonance in the human mind? I often go overboard making variations on this planet-like theme.
The central part is usually empty or sparsely populated with respect to graphical features and responds strongly to the India Ink patterns. This provides as marked contrast to the ring-like edge of the planet's surface which often has much more detail and reacts in unpredictable ways to the various photoshop compatible filters.
The Graphical Variations
Give the filters an image with some graphical variety to it and it's not hard to come up with something interesting. That's the power of "Clickism" which leaves the heavy lifting to the computer's graphical effects.