Black Skimmer skimming at dawn blur

This image was created on the April 2017 Fort DeSoto IPT with the hand held Canon EF 100-400mm f/4.5-5.6L IS II USM lens, the Canon Extender EF 1.4X III (at 560mm) and my favorite bird photography camera body, the Canon EOS 5D Mark IV. ISO 800. Evaluative metering +1 2/3 stops: 1/15 sec. at f/9 in Tv mode. AWB. LensAlign/FocusTune micro-adjustment: +7. Center Large Zone/AI Servo/Shutter Button AF was active at the moment of exposure. The AF system activated three AF points in the left center of the frame (see the DDP 4 screen capture below). None of the AF points were anywhere near the bird.

Learn lots more about the creation of this image in the Pre-dawn Photo Tip and NIK 50-50 on the Whole Image! blog post here.Visit the blog post to learn my pre-dawn blur technique.

As for the image, all honest comments are welcome.

with love, artie

Hi, Artie, I really like this technique and especially the effect it had on the skimmer's right wing. I'm conflicted on the greenish edge of the left wing. What do you think?