The photos are probably not photo shopped. Lens distortion on the other hand....more than likely.
You cannot see the "curvature" of the earth from any current commercial airliner. If you do some research most will say that 65,000 ft is the lowest that it is discernible.
What those photos may show is the spotlight of the sun shining down on the flat earth, which would appear to have round edges.
So in other words, yes, my eyes and my girlfriend's eyes were just lying to us at 40,000 feet even though we both had perfect vision at the time such that we both noticed it independently and struck up such a noteworthy conversation I recall it very clearly years later. Okay.
I did some research as you suggested and find more than a few people reporting noticing a slight curvature -- like that shown in the second picture I posted above -- from the window seat of a commercial airliner. Not just me on that one.
Must've been the lenses in our eyes distorting.
When I shine a spotlight down on some flat object, the edges do not look curved to me. I just did it.
BTW, I've sailed in open seas, and I noticed that I could not see very far. I've sailed toward, and away from, various land marks and have watched them slowly disappear until only the top was visible. Was that the lenses of my eyes tricking me, too? If so, it's the same tricky lens birth defect sailors have had since back when most people thought the Earth was flat and they'd sail off the edge of it (guarded ice wall notwithstanding).
I am trying to have a serious conversation here. But it's tough to do if you tell me the lenses of millions of human eyes spanning several hundred years of recorded history were all lying to them, tricking them, distoring them, between the time the image hits the eyes and the interpretation occurs in the brain. We're all... what... blind? Do you really truly believe that without any science to back it up, or have I missed the science on all this?