well, there’s this romanian site www.linux360.ro … which is a kind
of a linux magazine … and they’re making a distro called Vision … and
since one of my sisters is quite involved in this magazine … well, I
went to a conference … met some people … and thoguht I’d show off
making some wallpapers 
Done in about 6 hours of Blendering & 5 hours
of Gimping … well, these are the main versions anyway 
the first time I had displacement mapping looking good for me:
http://www.ixaarii.com/elysiun/vision/Vision%20bark%20-%20Void%20lon%20iXaarii.jpg
the uses of a wireframe 
http://www.ixaarii.com/elysiun/vision/virtual%20light%20-%20Void%20lon%20iXaarii.jpg
funny story: before getting a render in Blender I got that colorfull look (just the big Vision text) … I liked it so much I was sorry to see it overwritten with the rendering … so I started up IrfanView & took a snapshot as fast as I could Later I did some gimping on it, and besides effects I combined it with a photograph of fog particles I took one day.
http://www.ixaarii.com/elysiun/vision/Vision%20colorful%20-%20Void%20lon%20iXaarii.jpg