Nice and sharp and not too big Brian
The most significant issue is where the black antennae have merged in to the background tones of the image, but unless your subject was quite accommodating, I doubt there's much that could be done.
The only other things I would do to this, if mine would be;
Clone out the green leaf peeping in to lower left corner
Use a subtle blur brush on a few of the contrasty and sharp leaf edges, so they don't compete with the subject
HTH, Dave
Brian, I would agree with Dave on this one but better than anything I ever shot.
That's better Brian (bigger too),
I see you even dealt (very well) with a couple of specular reflections off the leaves adjacent to the butterfly.
You make a good student too
Although it seems incongruous calling you that as I'm sure you're older than me - but hey; "you're never to old to learn" - which should be a CiC motto.