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From t.degroot@inter.nl.net:
Nice idea. Some comments, though. The sub's texture is too shiny. It looks more like a toy or a piece of art to be put on the shelf. So, the impression is not of a stranded sub but more like a toy dropped on a beach. The sand texture is nice, but the normals do not hide the fact that...they are normals, so the boundaries between dunes are too sharp. I don't know how to solve this in Bryce or Rhino. In POV-Ray, I would suggest using isosurfaces for the dunes, or at least a heightfield with a fine resolution.