Hi Doug !
I just saw those screenshots. You keep getting better, as far as I can see
The first shot is a classic, but a good classic. Your choice of plane is excellent, it's a cool one and it suits well to the scenery. The shot itself is, for me, one of the most difficult to take, because the ideal angle of view seems quite obvious at first, but then you always find yourself struggling to include enough details and exclude enough "useless" parts of the pictures. For example here, perhaps it would have been good to place the plane a little bit more down in the shot, so that the bottom of the picture would not contain only plain ground.
... But in fact, as it is, the shot is already quite pleasant.
The second shot I have almost nothing to say. It's really nice andd original. The only "bad" point is that the scenery is not so rich in term of quantity of details. But the angle of view and the idea itself are really cool.
The third shot is almost perfect to me. I simply don't see what could be done better in it. The background is detailled, the sky is great, the plane is nice and the angle of view is original. I really like this one
8-) 
