I could give an other title to this as the flamingo is pulling his head out of his back part....but I just stay with this one. I can imagine a crop without the water below and adding more room around the bird...let's start with this version. Comments are welcome.
Think your composition works great as is. Your low angles are just amazing and making your images so much more powerful. Fun pose. Would have loved the open eye but of course when they are exhibiting this behavior their eyes are generally closed. Well seen and executed.
Wicked pose indeed, and I am glad you kept some of the water below. Vertical comp works really well. You really had a lot of success with those flamingos! A couple of dust spots are visible in the sky, and some white canvas creeping in at upper right corner...