I thought I'd share this before I move properly over to the TG4 beta as I expect I will be playing with the new toys for a while.
I'm happy with the basic dune structure and atmosphere and had been working on the blue boxes for the mid scale ridges/ripples. Not done anything with the small scale fine sand detail as yet.
Here are two of the more successful experiments:
[attach=1][attach=2]
I have an idea that the blue box tree for the second one may be a possible starting point for the elusive "Mackerel Sky".