Beautiful light, Andrew, and yes, the vultures are a plus. They seem to expand the dimensionality of the image by flying toward the viewer at two different angles.
I wonder about a variation with 50% less of the mangroves, to make it more of a pano. Since it's a silhouette anyway, I think the most important part is the top, where it meets the sky, and I think the shape of the image would improve.
Hi Andrew,beautiful color with strong rays emitting from an interesting sky. Agree regarding the crop at the bottom. 1/3rd to a 1/2 would do it for me. Subtle diagonal open formation on the birds also...nice!