The second of Ros's Bacteria.
Gradient map applied, edges found and blending options applied
Circular selections made, cut and pasted, overlaid and layer styles added (see layers menu)
Background created with a gradient fill, an overlay of lacey selection with small ares filled in using colours picked up from the gradient map layer.
Combine it all and the end result retains the circular feel of the original, and the texture, but adds exciting colour and interest.