Based on the facts that:
1) the images (which are taken at very similar angles) are in ratio of approximately 17(left image):12(right image), and both appear to be later 737 variants (although the right hand one has winglets)
2) the left hand image is considerably sharper and more detailed than the right hand one
3) the impact of long lenses is to make distant items seem closer (to us and each other) than they are
I have been able to quell any rising sense of panic or shock.
TimS