Thanks to all who voted,and to all who entered and made it such a varied selection of images.Congrats to orbital and drawbridgep...always an inspiration for me!

For the next challenge,why not keep on the alien theme.I propose...

           ALIEN WORLDS

Use any version of Bryce to create your vision of an alien landscape,be it a hostile desert planet with swirling dust storms,a frozen world orbiting a giant planet,an alien jungle full of bizarre plants and humid mists,a mechanized tech planet...you get the picture! Imports are allowed,but try to use Bryce for most of your needs.Minimal postwork would also be acceptable.As a side challenge,explore the many areas within Bryce and add an element that you have customized to the scene...for example, changing the colours of a preset terrain material,combining a trunk of one plant with the leaves of another,creating your own custom sky,etc. Add this element that you've tweaked into your description to accompany the image.

How's that sound???