Absolutely gorgeous to my eye. I'm not just being Nit Picky, however, I think 1 degree of CCW rotation to make the bottom of the reeds level & a smidge off the left side correcting the rotation makes a difference. See what you think?
You sure captured another Wall hanger.
Ian, a lovely image over all and a beautiful moment you captured here! If you had been a few more feet to the right I bet you would have captured a once in a lifetime angle on these two.
I do see that the whites are hot in a few spots. Did you try to recover them in RAW at all?
I'd also suggest trying to bring up the grays on the egret on the left - he feels a bit dark to me in this image - due to the angle of capture I'm sure.
These are all minor things but I think they'd take this great image up another notch if you can pull them off.