There's a cool program called Mandelbub, which I used to create a few of the fractals. It creates rather dense images at times, but I think they're unique enough to be included.
The landscapes were created using Photoshop, 3DS Max and Vue Xtreme and a lot of time and sweat.
The abstracts are just a hodge podge of techniques, materials, animations and designs all thown together to create a new look.
Have fun! I know I did.