It's always great to see geese flying together over water.
The only problem here is with their muted colours they are camouflaged against the background (especially the top 3) which is handy for the geese but not so good for the viewer :- )
For me, some of the birds, especially the higher two "get lost" or blend into the background. My favorite part are the three at the bottom right. That part of your photo has good color contrast to me.
The birds here don't contrast sufficiently with the background to provide a great point of interest. Having said that you've done very well to get them in focus and relatively sharp.