I think it's an exposure bracketing thing. The 1st photo is 'normal', then a little over-exposed and then underexposed. The over-exposure is about 1/3 of a stop at best (I'm guess) and the under would likely then be about 2/3.
Do I win a prize?
I'm not voting because there isn't any real difference in the 3 and none of them deserve a 'best' ribbon. imho, only of course....
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Changed my mind... I looked at the big versions instead of the thumbnails... I have no idea what the two first ones are about. But I will stick with my bracketing guess for the 3rd... though much more underexposed then 'fixed' in post.
Do I still win a prize?