I like to take photos of my watches, and I want to get better at it. However, I do not own a standalone camera, and don't want to own one either. I have a pretty good camera on my iPhone X, which I can grab out of my pocket immediately when the light or background is just right—try doing that with a camera that's buried in your backpack somewhere. Given this (arguably significant) constraint: how can I make the best possible pictures of my watches, using only my iPhone? What mistakes have I been making so far (some examples from my IG below)? How could I improve? All pointers very welcome. Thanks!