This is good, if I had taken it I supsect I would have tamed the yellow down big time .... which as you can tell would have been wrong - you are so right to have brought it out.
A very natural, but almost painted feel to it. Love the composition and blurred background as well as the point of yellow from the darker, muted background.
It's like a beautiful painting, I love the background color. I was curious about the plant so I looked it up, but didn't find pictures nearly as good as this. You should post this on some of those botany sites :).