Click, surapon and weko... thanks for your kind words!
My work takes me on the water probably a hundred days a year, so I've seen similar images throughout my career. In recent years I've found myself taking increasingly more photos like this, perhaps searching for my zen moments.
As for the blue lines in the water, they are the reflection of the relatively dark sky behind me. The pink, obviously, is from the sky color above the just-set sun.