nice color on the head and wing. i wish you had been able to crop a little tighter as i find the green stuff floating in the pond at the top distracting (and the head coming out of the head).
Some nasty pixellation on the dusk's wings - perhaps too high a level of compression? Or did you resize it to a very low res? Or is it a very low-res camera?
Looks VERY pixellated around its nerside wing. The whole thing looks grainy in fact - have you had to compress this a lot? It's a pity because it's a nice idea for the shot, and looks to have been well-captured.
You're getting a lot of pixelating in your photo. Someone told me last week to push the limit on filesize if possible -- maybe you could try this as well.