Very cool thread. Some outstanding knowledge on this forum. I'd like to offer a pic I took this week of a Hippeastrum (Amaryllis) called Lemon Lime. I was trying out a new lens.
Exif data: Nikon D7100, with a Nikkor 85mm f/1.8, taken at f/2.8, SS 1/50, ISO 160. Shot in RAW and processed in LR Creative Cloud.
This was taken indoors with natural light coming from a bay window on the left of the camera. I provided the black background.
I think the composition is OK. I wanted to fill the frame and I think the background works. I don't like the depth of field because the anthers on the main flower are out of focus. If I were to do this over I think I'd change the aperture to f/11 and either pump up the ISO or put the camera on a tripod and bring down the shutter speed.
Please let me know what you think.
Steve