Thanks, folks. Both of the pieces you've named were done entirely within UltraFractal, which is my tool of choice. I use Bryce every so often, as well as KPT 5. I also use XenoDream a lot - and from what you have to say, Ianfe, it's a program that might be right up your alley.

You both have nice galleries. I never really got into Poser much, so I admire folks who have the patience to get results like yours (SerpentGoddess) from it. Terragen is a cool program, but I've spent more time trying to get decent DEMs of my area (Western Canada) than actually doing anything with it, and never anything like your (Ianfe) stuff. Very nice!