Just out of curiosity, I find it surprising that the flower petals in the butterfly’s shadow are so blue (in addition to being darker than the sunlit petals). I’d have thought that the petals in the shadow receive some yellow light through the wings, but apparently the wings must be quite opaque.
(I happened to notice the different color of the shadows because I’ve been trying to find example cases for removing shadows, in response to a question on the Adobe section of this forum.)
Since I am somewhat of a butterfly freak (My shots of this summer have been somewhat soft. I rediscovered my 70-300 VR after thinking of selling it.), and you said that you have had a lot of experience in the "high noon" environment; could you tell me what focal length you used, and approximate distance to the butterfly.
Have you ever tried to get on the opposite side of the sun to shoot butterflies? Would love to see some examples. Not familiar with this variety. What I found particularly interesting were the eyes & antennaes, clearly visible since you got such a sharp image.