Hi Bob - I quite like this - a little tight especially at the top for my tastes - Sharp were it needs to be - but cant help feeling like I want to see more DOF so that more of the flower and antenna are in focus. Of course that may not have been possible.
Think you could coax some more detail out of the butterfly with some careful sharpening.
Good show :)
Definitely too tight up top but everything else works compositionally. I'd also look for a bit more DOF - not so critical for the flower but the back wings of the butterfly would be nice to see since it is the main focal point. If more DOF isn't possible, you can always move to the right and line him up so he's entirely square with the focal plane.
Lovely colors in this - that deep blue sky really sets off his intense coloring!