Not Actually a Sky (or sea)

I struggled today, so I played around with three slow-shutterspeed shots of a small waterfall on a local burn, and used it to create a sky and a blurred version of it made the sea (both rotated 90 degrees).

The camera was moved during the exposures in a technique known as ICM (Intentional Camera Movement).

The result just needed a point of interest which I inserted from another capture.