I prefer the second: Heaven and Earth Overturned.
Showing more of the arch in the top left helps create greater depth. The arch is seems to be more than just a frame, but part of the landscape. There also seems to be more to see through the arch with a more appropriate amount of sky than the other two.
Overall, though, I find all them appear over-processed (at least to me, as a photographer, perhaps not to the general public). In a strong light situation like this, there should be more deeper shadow on "this" side of the arch.