In my opinion, it's whatever you want it to be..or, whatever your unique vision directs you produce. This is an age-old controversy..post-pro vs. not.. Fractal art is just that- fractal "art" and each of us decides which route we'll take to arrive where we want to be. Truth be known, "pure" used within the context of fractal art is a misnomer. I mean, with all the transformations, masks and even various coloring algorithms, the "pure" fractal form is- more often than not, not entirely evident within any given fractal composition. I consider myself a digital artist, and one of my passions is fashioning fractal images, and my goal is to produce art- not a pure fractal form that is necessarily distinguishable as such. So, as the song sez, "do what you want to do, go where you want to go" with it. Just my .02. :)