It;s difficult to evaluate such a small image. For this forum we usually recommend 800 pixels as the largest side. It'd difficult to tell from the size posted, but I suspect it needs more DOF for native sharpness. Also, the color balance may be a little off. Try adding a little blue. There may also be a noise problem in the dark areas, but again, with such a small image to examine, it's difficult to say.
I'd suggest cleaning up the trace spider silk and brown stains on the petals that distract.
