Street Backdrop Scene

For the shots in which we see outside the diner, I have had to create a new layout which can be used as a backdrop. I am unsure whether to have this layout in 3D space, so when the camera moves round the scene in After Effects, we can see the backdrop moving in 3D space too, or have it as a plane with some blur to add depth to the layouts throughout the film which will feature this in the background through the diner windows.

Fig. ?. After Effects Quicktime of DinerPOVStreet Layout (WIP)

After testing this out in a shot, I think the plane will work much better