EdgeDemon asked me how i make my stuff, that's why i am posting a tiny little tutorial here.
If you want to make fractals like mine, here is a list of things that you can do:

1) Get Apophysis 3D Hack (easy to find with Google) and get all the nice scripts for it. A good source is [link]

2) Play around with it. Just try the default fractals that you see at the start.

3) Use scripts. Nice starter scripts are:
3D Bubbles
3D Stairway
Wizard Soup

Note: Try to use more than one script. With the bubble script you can use "overlay" to add to your fractal instead of deleting it before. If a script does not have this option you can easily make an overlay version of it. Copy the script, edit the copy. Find the line with "clear;", delete it or comment it out.

4) Render your fractal. Use .PNG-Format!

5) Get Paint.Net (easily found with Google)
Note: You can get a lot of free, nice plugins for Paint.Net

6) Load your fractal into Paint.Net

7) Add a layer. Put the new layer behind your fractal.

8) Change drawing colors to dark blue and black.

8) In the "Effects" menu use the cloud effect on your new layer

9) save as .jpg

10) Voila, that's it. Of course you can do a lot more if you like