Apologies for stealing your images Ronster but wanted to make my own point/suggestion about this scene:
The problem here I feel(in the original, not just your edit Ady), is that there is a straight cut from the one scene to the next, indicating no passage of time, where as we can clearly see 'the big one' pretty far away in the first shot.
I would suggest one of the following:
1) Have the asteroid in the first shot approaching much faster and/or bigger in the first place (would make the most sense to preserve original material while at the same time while creating better continuity, but no idea if it would look decent or not).
2) remove it entirely from the cockpit scene, as the audience would just assume it's present off-screen below the Falcon, as the next shot show's them descending. (may be the optimal solution).
3) Screen wipe between the two (certainly the most inelegant, but probably the easiest and most 'Star Warsy').