This image has been shot on the Isle of Arran in Scotland, and - as the title suggest - well after sunset and when the last light of the day was almost completely gone. This deepened the red in the sky and its reflection on the water, while at the same time making the contrast with the blue hues of the rest of the image even more striking.
With the Pentax 645z and the 80-160mm f/4.5. Thanks for viewing! Best,
Vieri