Sparkling sea below dark clouds

I took this from Holy Island, Northumberland, looking South from the beach towards Bamburgh Castle, in August 2013. The focus of the picture is the stretch of sea sparkling in a shaft of sunshine, whilst everywhere else is in the shade of the dark clouds. I also love the two very different silhouetted structures - the castle on the horizon and the little cairn of pebbles on the beach; each obviously very different in actual size, but both dwarfed by the vast sky.

In Lightroom, I cropped the image to remove some of the pebble beach in the foreground and increase the drama of the clouds dominating the sky. I also tweaked contrast and exposure to highlight the 'sparkles'.