The original image is a close up of the bark of the Rainbow Eucalyptus tree. It was made along the Road to Hana, on Maui.
It was treated first with Fractalius and later with Topaz. The process altered the colours, reduced much detail and drastically reduced the saturation.
The end result has become an interesting example of Colour Harmony as described in my talk on "The Ingredients." When highly unsaturated colours are combined in an image, they often get along famously, much more than the original saturated colours would. In The Ingredients, this falls under the third type of colour harmony.
The first type is subject colours that repeat in the background, the second type is complementary colours.
This image was scanned from an original 6x7 slide made with Mamiya RZ 67 Pro.