@eylul Sun in the water is a big question-mark as it's not as visible on horizon

@ali_geyik Not a question mark exactly. I was wondering if someone would notice it through. :)

Hint 1: not the first time this happened in a edit backlog photograph of mine (although previous time was much more subtle).

hint 2: no copy pasting involved.

Can you guess what is going on here?

@eylul Right to left wide angle stitching defect? :)
@eylul not taking as a Yes I assume, so mystery remains..

@ali_geyik Not a defect at all. :D

You assume that the ground is the bottom part of the image, and that the sky is on top when... it is not, not originally :) The image is flipped vertically. Subtle editing decisions helps the illusion that it is right side up.

Panorama stitch was a good guess through. (although no, this isn't a panorama) :)

@eylul well, that's not the only upside down photo in your backlog, I see