Very cool! I love the pollen on the flower petals! Depth-of-field is great although it appears to be a little soft on the near end. It would probably be preferable to be soft near the bottom of the stamen - at least that's what I'd prefer.
The only real problem with this, in my opinion, is the composition. Do you know about the Rule-of-Thirds? It recommends that you divide your image into a grid of nine and place your main subject on one of the grid lines. This means your subject should never be in the center of the image. Having the stamen in the middle of this photo traps my eye so I can't explore the details around the outside as easily. If you moved it over to the left a bit you'd have a much more dynamic and engaging composition. Since I know you cropped this, you might try a crop that follows the Rule-of-Thirds to see what you think.
Hope that's useful to you. Thanks for sharing. It's a cool photo even if the composition isn't perfect.
Photo-John
