This is a small cactus I had that has fascinating details. So I wanted to emphasize those, and I used a zoom lens with makro function to show the spikes and interesting structure of this plant.
I use a crop sensor of the Nikon D7200 and the Tamron 70-300 mm f/4.0-5.6 in macro mode. I took the shot outside with natural light and used the dark brown-red fence as a contrasting background for the strong green color of the cactus, making the plant's details even clearer.