Wow, great job on this one.
Things I love:
-The detail! It reminds me of cutout metalwork, and the way you did the color symmetry (I think that's what it is, anyway) really brought it out well.
-Composition. I feel like this fractal has a very diptych-esque quality to it, the way the left have contains a symmetrical form and the right half contains a separately symmetrical form. The two are different, but they complement each other.
There is only one thing stopping me from fully enjoying this fractal: the colors. The rusty orange and drab grey-blue not only clash a bit, they also do not suite the delicious ornate shapes of the fractal. I think if the orange were gold, and the blue were a richer, bluer blue, then you would really have something awesome on your hands.
i think all this needs is a bit of postwork, especially with the hue/saturation and the curves. an overall darkened but saturated palette and some contrast would nicely bring out the cutout metal effect Jess mentioned.