The last image has a name: Reverse Hourglass. The others are just images!
They were all made by me, a complete fractal novice, using the cutest (and free) little program called Apophysis. It's super adictive, so I'm sure more fractal posts will follow...you don't mind do you?
Being interested in fractals recently, I found this web-page...Haven't completely finished working through the process, so I can't promise it works easily, but the Maths behind it is extremely interesting...It does involve complex numbers, so when I have the energy I will post a little something about that too! In the meantime, if you have plenty of bandwidth then try it out...