Sand Test

I have been looking at the sand in some of shots and finding it a little dull. So to address this, I tried to take the mesh into Zbrush and work it up.Wanted to keep it lose and have fun with it. Here is frame of what I got.
When I first started on the film I could not see a good way to work this sand up, not with the resources that I have. And it wasn't till Decimation Master came out for Zbrush 3.5 that I could see a way.Really helps to give the characters of feeling of being in the world, rather than walking on it. Now I dont think I am going to animating this ground, its very heavy, so have will to choose where I put it carefully.