This image took nearly 30 hours to render at 2000x1500. I've had it on the back burner for nearly 2 years, so I figured I'd visit TG2 again and render it. Its mainly a mix of some techniques I'd been working on a long while back.
The sand surface features crystal sparkles (procedural), and the sand ridges are a combination of procedural methods and a custom image map for the hard, crusty, wind-blown look.
The mounds, clouds, lighting, atmospherics are all procedural. Soft shadows are on. AA bloom is on.
Postwork (30 mins or so):
The stars and the sunspot effect (which I wasn't able to pull off properly any other way, though I'm sure it could be done procedurally).
Minor color/contrast and selective sharpening in Photoshop.
This image could have been made much better, but what the heck... time to move on.
Thanks for viewing.