Having a second look at the star destroyers closing in on Hoth:
It would be more impressive if the star destroyer on the portside of the Executor would be much closer to the camera, because:
1. it would look more menacing,
2. it would avoid the size comparison to the Executor
(which never made an impression to me as the ISD appears to be small),
3. it would allow an undisturbed impression of the wedged shape of the Executor by showing the full portside pointing towards Hoth.