Thanks for the nice comments. 
The sand/glue mixture was pretty thin, so loads of tension caused crackles everywhere. Im pretty confident with the result, but the crater is a bit too much imho. With some "HEKI" grass, Rohrers Antiktusche (=antique ink, burnt umber), some moss flowers and a bit of green paint the base was completed so far.
Furthermore, I cut the "Camel" letters from the cigarette box as well as the camel logo and combined it with some spare parts from the greeble box.
Base:
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Badge:
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