Slobodan was going in the right direction. It can be saved, and improved at the same time
It is going to take some patient
blending, my quick version is really rough ,with a bit more time I could have done much better.
In ACR or Lightroom...
I used 2 graduated filters to darken the corners as Slobodan suggested.Don't worry if you cover too much of the ground area (trees).
Go to the adjustment brush (low density, full flow, and feathered, and with the auto masking turned on), go back over and lighten the areas that got darker on the trees and background (that got too dark with the grad filters).
Go back over the sky if, or as necessary with the auto masking turned on, which will somewhat protect the large tree and needles as you work on the sky behind it to blend the blues using brightness and exposure sliders with combinations of density and feathering. Then go to the HSL sliders and adjust the blues and cyans some more to your liking,and while your in there you could saturate the oranges a little and make them a little
redder again to your liking