the highlights seems to have lost almost all the details, did you tried other versions with some more depth of field ?
Hi Susanne !
# I agree with Armando about this burned area, which are very well solved thanks AndeaB' suggestion. (she's a digital processing wizard !

)
This is very important as the anther is the main subject (being sharp and brighter).
# You can improve the composition placing this main subject in a special area of the image : if you divide the frame with 4 lines (2 vertical lines and 2 horizontal lines), in order to obtain 9 equal parts, and 4 crossing points.
Each point is a important point, aesthetically speaking.
It is not a absolute rule. (rules are made to be broken)...But sometimes, they help.

Image below to illustrate what I mean :
That said, you image is not bad at all.