no one's ever asked me for that! i wouldn't say i would do it though, mostly cause i can't remember how i exactly did it. yet i can tell you a general idea of how it was done. i used apophysis and photoshop, then i combined two fractals that fitted together. i also used a blending mode that i can't remember now since this was 3 years ago. i also played with the levels to get an attractive coloration and that was it. trust me it won't take long till you get the hang of it.