I love this hibiscus. Unlike yesterday’s shot, I wanted more depth of fieldHibis so I stepped back rather than stop down the lens. The camera was handheld still and a breeze had picked up. It was noon, the hibiscus shaded by part of the house. Hibiscus love the sun but a little noontime shade in Texas never hurts.
As I watched the flower, I was struck by how light and dark mingled like swirled chocolate. I saw the image repeated when I poured half and half into my first cup of morning coffee (it is the only time I add half and half or sugar, the rest of my coffees are black). Finally, a friend of mine showed me photos he took of ballerinas. They were practicing in an old warehouse and his lighting was fabulous, the swirls of motion contrasting with frozen, perfect faces. So, yesterday, it was back to Lightroom.
In Lightroom, I desaturated the image and brightened the light parts of the flower. I darkened the dark parts. Then, I went to split toning where I chose a sepia shade for the dark (it is 17 on the slider, if anyone uses LR). For the highlights, I choose more of a deep reddish purple.
Nikon D90 with Tamron 90. 1/320s at f/4, ISO160.
I think flower photography more than anything allows me the freedom to explore my imagination. 
In Nikon, the standard ISO is 200 so reducing this lowers noise but also reduces contrast, slightly. I think it MIGHT give me a little more range of color.