But where do those different images come from? Is it necessary to credit the sources?
Oh, I wasn't saying that with any level of seriousness! By "pretty", I meant that the photos are especially impressive because of what is pictured (ex, ex). I wasn't really taking into account the styles in which they were taken. It's definitely plausible that some of the ads were entirely manufactured by the mods-- but it isn't really likely for many of the ads.