...uuuhhh, my head is still spinning from driving in circles...

BUT... I'm sorry to say that I don't understand the algorithm how the SW is placing the background image wrt the direction you go to. There is some correlation of course but it doesn't seem to work precise at all.
The image itself is stunning though!!!

Can someone else try and give us a hint if there's any way to make this feasible? It doesn't matter which background image you have - just try to find out if some significant element of your picture always points you to a specific cardinal point (i.e. is always right in front if you go e.g. south). Of course it is easier with the scales above - and a nice show anyhow!
WATCH OUT - don't kill too many pedestrians when doing this!!!

Ronny