This image probably suffers from camera-induced blur. The whole image is unsharp due to the use of too low of a shutter speed for the magnification level. Was this hand held?
You have a good composition, with the bee slightly decentralised but still as very much the main focus of the image. Technically I would say that the image is either slightly out of focus, or more likely you just have an exceptionally shallow depth of field as I think I can see part of the leaf in focus.
Knowing my luck, you are probably a far better photographer than I, but as an overall impression I would just say work on either the depth of field or focus of the macro.