Great thread idea,
@seedfork!
I am not an expert on taking photos, but I do enjoy it and am improving over time by watching what others do and looking through tons of pictures. One thing I have learned to do is to put yourself on eye level or slightly higher (I know this isn't always possible!) from the plant you are trying to capture.
I have been using my iPad for a while now to take pics, and while it lacks the features of fancier cameras, it does allow me to lower it to the level I like without having to have my body do the same (or where my body will not comfortably fit or where I have things planted too close).
As an example, here is a photo of Siloam Double Classic that I took yesterday. It should begin to bloom next week.
And here's a close up of a dianthus that is blooming here. I took it by kneeling down and moving the iPad close to eye level.
Just my two cents, of course!