vaderios said:

So we can have a little brainstorm here. Correct me if im wrong ofc.

We see the first visible establisting shot of the battle fielf in the first image.

Its a clear weather if we assume that the day passed a bit from the morning when the troopers first see the AT-ATs in the fog.

Also i know ady may take care already that just now with Serji-X's help we can have a more complete view of the field

-Angel

I haven't exactly got a photographic memory but the view outside Luke's window looks suspiciously similar to the one outside the window of the speeder that finds him after Wampa night.

Could they have used the same aerial footage?

If so could it be isolated and retinkered with to put the mountains behind the model side view?