In your opinion,

what makes photography an art?

There are basic fundamentals of art, and photography uses them such as composition, lighting, value, perspective... There ARE better photographs by those who know the fundamentals, and those are art.

I was trained as a news photographer and did it for some time. I tend to still take photos like that.

My wife is an artist, and pays far more attention to composition and pose than I do.

Her photos of an event, such as a wedding, are Art.

I've worked as "second shooter" at several weddings that she photographed. And I've seen the albums the bride (and sometimes the bride's mother) put together from our photos.

The vast majority of the photos in the fancy white covered wedding album were hers. The ones in the other album would be mine.