The image, entitled "Rainbow Orchid," is basically a carefully tweaked Lissajou pattern.  The "tricks" were to make the z axis oscillation slightly asynchronous relative to those of x and y and to limit the range of the function so that the "incomplete" pattern would have a more distinctive and interesting shape than the one that would have been created by filling in all the gaps.  Coloration was a just a matter of oscillating the rgb values using frequencies that were related to, but not identical to, those of the spatial coordinates.  The sampling increment was deliberately left fairly large in order to reveal rather than conceal the basic oscillation pattern upon which the shape is built.  The entry is my humble attempt to show that beauty and elegance can be found throughout the realm of mathematics, even amongst the lowly basic trig functions.