Great subject and perch. Right side of upper wing seems soft but otherwise nice detail. Too bad the background vegetation is so close; this image would pop a lot more with a softer BG. If you are so inclined and have time on your hands you may want to try blurring the BG in post, but getting the selection right may be a lot of work.
Very good shot Stuart, there is an awful lot to get in the same frame so not an easy shot. The left forewing area is a little blurred I suspect this was a little bit of wind as the rest is sharp. With an image such as this I would definitely take several images at different apertures, the subject is relatively large so I suspect you could have gone to f7.1 or f6.3, the background would have been more diffused and the shutter speed faster.