Fractal art is the opposite of design.
When playing around with fractals, shapes start to emerge, and when they start to resemble something - anything - I play with that. For instance, if something looks like a mountain, I will color it like a mountain, and light it with a low sun, or a hazy atmosphere.
This is important because the human eye will connect with something it thinks it knows - but it's different.
The danger of fractal art is that it becomes so abstract that your mind can't comprehend it at all.
Birds of Paradise - Totally Tubular