I like the photograph. Improvements? Depends on what you want from the photo. At first glance it looks romantic but with his arms folded it looks like maybe they had a disagreement. But maybe that is what you wanted.
One forum member thinks my previous reply was funny. I am serious. How does any other person know what you were trying to convey? Perhaps you didn't want "another" romantic beachside happy romantic vista but something different. Or maybe you did. Just askin'.