Crescents

CD6b, an example of fractal art in the form of a Sierpiński curve Julia set, the Julia (and Fatou) set of a rational function. This fractal is a connected set (see Sutherland's book, or these notes, for the definition of a connected set). Whilst the colouring method is different, this fractal has exactly the same form as this one. (This picture was made using the escape time algorithm which is described here for the Mandelbrot set and its associated filled-in Julia sets.)

Here is a fine art print of this picture.