Thanks a lot!!
It took me some time to get used with the programm (Mandelbulb 3D) and I just played around with all the parameters and functions. The fractal was just a result of testing. To create the movement I need to create key-frames and that took about an hour. An rendering this GIF animation... about 3 hours in 720p resolution - a good friend dit that for me, because my PC is to slow
Converting this GIF into a smaller video, that was a waste of time. The video file size was not smaller that the GIF animation (~2gb).
I guess, that I spent about 6 hours at all for this fractal.