Steampunk Desert Fortress Corner Wall

A few months ago, Sean gave me some Warhammer terrain pieces he wasn't using. I've been turning them into what I think is going to be part of an outer wall of an abandoned steampunk desert fortress. Lots of earth tones, accented with bronze, gold, and silver, and highlighted with weathering effects--chiefly some sandblasting and mud here. The pod at the top looks to me like some kind of air conditioning unit or maybe a moisture collector. 

This is the third piece I've finished out of five. Thanks, Sean!