Rufous Hummingbird

I've never seen one hitting the Mountain Bluet before, but this one was at it for a short while last night. I was actually taking pictures of it bathing in the pond (those will come later), but one of them came to the flowers that were barely outside the minimum focal distance I had difficulty with that much of the frame filled with achieving a good composition, but I thought a couple of them worked reasonably well.

1Div, 500mm f4 ISL + 2.0TC, Jobu gimbal on RRS legs, f8, 1/800, iso 500, Aperture priority, -1/3 stop compensation. Processed in LR5 & CS6. Cropped slightly from the UL corner to help decenter the hummingbird-final size is 13.4MP. Taken yesterday evening at 7:30 pm.

Your comments and criticisms are most appreciated.

Thanks for looking,