I think you have a pretty good shot there. Kind of tricky the way the thumbnail links to a larger image, but still, the large image looks excellent. I'm currently trying to learn how to shoot hummers, and I'd be very happy with this one. ;-)
You might consider adding a little note that says 'click on the thumbnail to see a larger version' or something similar. I've seen others that do that with similar image hosting sites.
The pic is great. However about your link. After I close it I get a popup that wants me to repair my computer. It is a known spyware. Its probably something to do with your image hosting provider. Just FYI!