I am sure this would have scored higher if there was not so much noise in the background and the light on the flowers were not so harsh. The composition and DOF is very nice though.
A bit noisey, unfortunately. Perhaps oversharpened? Also, the shadows on the subject don't seem to bring them out as well as they would have been brought out with light directly on them.
The direct sunlight looks too harsh and blots out some fine details of the petals. I'm not sure if there may be too much contrast or sharpening too but there's odd stuff going on in the background. 4.