im not sure about a rating but i can tell you how I would better them

well, i would have the aircraft lighter, much lighter, but not so light that you lose the mood. but i thinhk having some detail on the aircraft is good.
and in the first i would have more clouds and possibly some ground at the sunset, its a bit empty

and the zoom in the second is good, but i would have some ground in it again, so tehre is a bit more to look at, again a bit too simple for my taste.

and thats just to my taste.

hope this helps

cheers
james