My guess is they brightened and added contrast to give the buildings in the foreground more definition. That resulted in the sky being bright white so they expanded the area of smoke to tone down the sky.
It's disturbing the editor, probably a photo editor, but at least a pro, didn't spot this as a fake immediately. Deadlines be damned, the whole story, and the agency for that matter, lose credibility.
One thing is apparent, though.....Hezbollah has used the media much more effectively than the IDF, from the git-go.
