Look up Clean backgrounds - blue skies if you're lucky.
Fallen Blossom Look Down or crouch down, and shoot with a low perspective
Watch the focus on the crocus !!
The Close-up symbol. In this mode the camera will maximise its ability to focus at close range - and at the same time increase depth of field - Focus is critical in macro mode and extra depth of field will help keep the main subject sharp. Stay really still. Shoot several pics and choose the sharpest
And if it's STILL NOT SHARP - say " it's Abstract - dummy !!! "