Greetings from the CC.
This shot to me is very well done overall, I like the light on the yeollw, and the DOF is great that you can see the other flowers. The black really helps the yellow to pop. The compostion is also good I think, yet something overall is not working, I think it may be the orange background. I would like to see some maybe with all black? Actually I think it is the combo of the black and the orange you have 2 backgrounds and a strong flower and even tho they all work individually I think my eye is not sure where to land. And the quality of the light seems different in each part. All the elements are really well done, but together they are competing. I hope that helps. I think you are extremely close to a really great image.
Well done, congrats on a well placed image!
I would suggest cropping out the dark area on the bottom if not completely atleast some. It keeps holding my eye as the highest point of contrast. Still very nice.