A couple of suggestions
- maybe drop one of the rear 2 birds back slightly, to get a stronger sense of the plane of the water
- maybe turn one head of the left hand 3 birds slightly towards observer (I assume in true life they knew you were there)- would give an even greater sense of engagement
Well done on the tick, Alan - you've really done a great job on the little blighter. Must turn into a little colour sketch, mustn't it?
Fabulous work - great bird!