Stik- I heartily agree, but times, places and mores were way different then. In todays world, some people would wonder. Hence my suggestion of at least a destroyed vehicle. Especially with just a (typically dressed) Bedouin in the scene. Would also add more intrest to it, at least for me. Maybe have the camel standing on it with one hoof.
Just trying to take as much ambiguity out of it as possible.