Pastel Sunset off the Sussex Coast

I photographed this pretty sunset from the Beach at Birling Gap in The Seven Sisters National Park in East Sussex.

I'm not sure if the pastel colours are due to the amount of chalk in the water or whether that's just a coincidence. The sunsets here certainly look different from the ones at the beach at the end of my road where the colours tend to be more vibrant.

^{Be sure to click on the image to view it full screen!}