Hi Sean,
As you've requested critique, here's my take on your image.
The positive points are that it is full of lovely colours and it actually represents a lovely view of the environment the bee would frequent so plus points there.
On the other side however, I find the image to be rather soft and very grainy. The grain would be down to the level of ISO you used. The softness, I think coming from a crop maybe as the shutter speed should be well enough to freeze action. I see you're shooting natural light but I think 1/1600th for a stationary subject is far too fast. It doesn't seem to have helped sharpen up the image.
It's a close up but not overly close and as such, although the environment side is still valid, from a Macro/Close up perspective, the background is somewhat busy. As you're shooting at quite a long focal length was it not possible to open the aperture a little more to isolate the bee from the background or was F/5.6 the widest you could go? Normally Macro/Closeups need a smaller aperture but this is only down to the fact that we're normally right up on the subject.
I would have dialled down the ISO until you could easily achieve a slower shutter speed that doesn't compromise the image clarity through movement. 1/200th would have been fine and probably have allowed an ISO 200 or so (without doing the maths.. could be higher or lower). Also, have gone for a more open aperture to help blur the background a little more. Were you on a tripod? If not then maybe a faster shutter than 1/200th and a slightly higher ISO than 200 but still enough to reduce grain.
Despite my crit, I do actually like the shot a lot. As mentioned, it fits the environment aspect a lot more and it's nice to see such shots. Perhaps a bit of unsharp mask and noise reduction to help clean up the image a touch?