The trees are perfect !!! The grass looks OK but it should be affected by the propeller’s wash and the transition between the close view where grass is visible and the distance view where the grass is no more visible is too rough.
The ground on which the second hurri is standing where the grass is no longer visible seems to be as flat as my ex. And the shape of the grass should be visible on the bottom of the hangar, something like this maybe (I’m not a photoshop pro):
And the ‘brutality of war’ would be more realistic like this: