Artwork was created entirely in Studio Artist, a multi media software program for stills, animation and video, which has  fractal capability integrated in its MSG (Modulated Synthetics Graphics) component. The original image was duplicated on another layer and flipped.  The "stairway" was a happy accident, unexpectedly generated via a third pass  with a different processor which added the interesting detail within the area where the 2 hearts meet. Some color adjustment and sharpening within the program itself were the only other steps. No additional software was used.