This was a quick mock up I made for the climax sequence of a Canadian Film Centre short. Sadly, they ran out of time and weren't able to film the actors for this scene so it was abandoned.
In order to get the ground plane I took a photo through the glass floor of the CN tower with a 55mm lens. The foreground building element was just a picture of Union station repeated several times. The two images were brought into After effects' 2.5D workspace. A simple dolly move, camera shake, motion blur and some colour correction were then added.
Total time spent working on this shot: 2 hours (approx.)
Camera: Nikon D60, Raw format @ 3872 x 2592
After Effects comp: DVCPRO HD 1280 x 720 @ 23.976 32bpc render