Well, today has been a productive day, the morning was spent painting the dunes and rock pillars:
After the sealant coats with thinned PVA (mixed with paint) I painted the basecoat with a paint gun (as in: the big thing that came with the compressor, not an airbrush...). Which, after some double sided tape/hot glue to fix the terrain pieces in place, worked acceptably.
Drybrushing followed after that. While the dunes ended up a bit darker than planned, I'm pleased with the result. The rock technique has been declared a succes, so I proceeded to start on one of the larger hills:
See you next time!