If you look at the details, you can see that the auto-focus of your cam made the focus on the leave, just at left of the flower. But the flower is totally out of focus. This is because of the lack of light. To avoid that, you must center the flower during the focusing delay and then move your cam (for the composition) before to take the photo. It would be better with a ray of sun too. More the light is strong, more the "depth of field" (the area where the focusing is good) will be large.
very nice shot, i would've preferd if you centered the flower a bit more, but im sure you have your reasons for taking the shot the way you did. good job!