this is a visualization of part of the Julia set. I created this with a python script. the image is rotated 90 degrees.
scale = 3
c = 0.28 + 0.005j
to get a similar image you need to use mod 20 for the iterations and assign a different color for each group of 20 iterations as well as a tone gradient along the iterations from 1 to 20. use the exit value of the equation to smooth each iterations band of color.