So here's the finished shot. Pretty good considering nothing is actually animated, it's all just moving stills. To get the cars to move across without looking crappy you jitter the up and down in their movement path. You'll notice a bit of parralax movement at the start (where some layers are moving in different directions and speeds to other layers) and there's a bit of a pull focus that also happens. These little tricks can make a 4second still image a slight bit more interesting.
Oh if you're wondering why I didnt keep the warmer city image and chose the washed out one for the final, it's more about what emotion that will give my sequence. There's not a lot of dialouge in "Porcelain" so the imagery has to be clear on the feeling. This is the stuff you can only do on your own projects and never for any clients.
Everything is in layers (7 layers all up) and now I am going to bring that across into after effects. I was going to do my blurs in photoshop but I want a little bit more control on how it happens over time in after effects.
This other reference image is going to serve as my background. I think this should work.