This scene has been hanging around on my hard drive forever. I finally added a backdrop that I liked, and finished it up.
The foreground figure is Michael 4, aged by use of morphs. The armor uses a custom texture with noise and scratches added to make it look worn.
The background buildings consist of elements from Stonemason's Greeble City Blocks, grouped around an 'atmosphere processor' from the free set of "Aliens" models by On Target 3D. The aircraft overhead is one of the free models provided with Carrara.
A large volumetric cloud is used to add an element of mistiness to the scene.