Kudos to your wife for her artist's eye.
A lovely composition. I like the shadows cast by the rail fence and the -- what -- butte or bluff on the left side.
I also noticed a slight yellow color cast.
I've been experimenting with the LAB color space and took the liberty of making a run at this.
I hope you don't mind.
Since the "b" channel controls the yellow/blue hues, it was possible to tweak the yellows in the photo without damaging the blue sky.
Of course color can be subjective, varying from monitor to monitor, and toning down the yellow perhaps robs the image of the late-day golden glow that many would prefer in this particular fine photograph.
Best Regards
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