I believe the camera or you actually made a shadow on the blossom while shooting. Try a longer focal length, and standing a bit away. Also, you can see that it is not in focus.. which also means you are too close for your focal length.
Pretty flower. Nice color and I always love rain/dew on plants. Your camera is shadowing the flower (bad thing, take a half step back and zoom a tiny bit or change your angle or lighting). Focus is pretty good. Color is pretty good, too, but might be better with a little more saturation. Challenge - without the title, this photo does not say "time" to me (it say's pretty flower). 5 Swash