Classic red winged blackbird pose. Excellent exposure with excellent detail in the epaulets. So often the red channel is blown there and all detail lost. Yes, a bit different light angle with it more over your left shoulder would have been nice. Simple, complimentary background.
I might crop about 1/3 of the way up the thin stalk of the cattail, but that is just a personal thing.
Nice pose. Agree with your wish for a little more light on the head. Tough to get shadow detail and hold the reds. I like the look of the epaultet in this one. Looks like flames.