When I moved to Seattle back in 2011 and was looking for a place to rent, I noticed that almost all the photos across multiple listings looked like they were paintings or architectural renderings or something. I could not figure out what was off about them.

A friend pointed out that the lighting was off because every single one was photoshopped with one of a few pictures of a sunny blue sky with just a few clouds in the background, despite likely having been taken on a grey, fully cloudy day.