Nice render, very high quality and smooth! Looks like a visual out of the end of 2001.
Edit: Saw your edit. I like the second one even more, it looks like it belongs in Freespace!
I apologize in advance, but I'm a hugeass apophysis fan, so I'm going to start gushing fractal imagery now. D:
Mutual Gravitation. An experiment in symmetry and the
"Disk Spiral" variety of fractal.
Bioluminescence. Another disk spiral.
Jeweled Marble.
Light of Earendil. Yeah, I love LotR.
Light And Shadow. An experiment in black and white.
Divine Moments of Truth. Inspired by a Shpongle song about DMT.
Fire Element. 3-Way Symmetry. One of my earliest and still a favorite. Sadly I lost the parameter file long ago.
Spirit Element. 4-Way Symmetry.
Subspace. This one was made in the 3D Apophysis hack that someone posted on DA a while back.
Lastly, a nebula I just finished rendering. A few small touchups in GIMP (color fixing and added star to center) but otherwise it's all Apophysis.