That glare is as it would've been put hastily in there. Those lights from lighthouse that go in tight X shape, are eager to get proper glare.
I hope this pic helps, that, how much you should soften that glare.

I had a simple method of perspective sight, but I not good in explaining, and even good old Wikipedia, doesn't have the most simple way of perspective, what I learned in school. But I'll give the
shot.Also, I think that buoy's waves don't blend well in rest of sea.
Otherwise, this pic is totally awesome.