How do you create these things? Is there a tutorial or something? I would like to try something like this!

that is again mandelbulb3d ... on fractalforums and DA there are several tut but the best i believe is just search a image you like with parameters, copy and paste the parameters and try to change something little by little

(usually i first change position , put more lights then i start to modify here and there...

I start 2 times to make a unproductive tut but i never finished