Here's a tutorial to make a wallpaper like this one
(I made it)
http://www.deviantart.com/deviation/29244358/
Ok so the wallpaper looks really hard, but actually it's so damn easy...
1) Open 1024x768 document in photoshop (white background)
2) Go to Filter > Render > Clouds.
3) Now do Filter > Render > Difference Clouds
4) Repeat step 3 for about 10 times. (Tip: Press CNTRL + F).
5) Make a color balance (Layer > New Adjustment Layer > Color Balance). Play with the settings until you get like a dark cyan (not completely blue, not too dark, not to light).
6) Make a copy of the layer where you made the clouds (Right click on it and select Duplicate Layer. You don't need to change any settings.).
7) Set the Copy to overlay. Layer structure should be like this:
You may also move the Background Copy layer below the Color Balance for some small detail changes.
8) If you did everything correctly it should look like my deviation. If it doesn't look good, delete the color balance and make a new one.
So there ya go... hope you like it!
Btw, please don't claim that you made this wallpaper yourself, you know you made it with a tutorial.
Tutorial by
zCE (me).