This is a great photo because it's not just the normal sunset. While it is beautiful in itself, it also carries a message with it. It makes the observer think about how gorgeous this world can be, but also about what we, as humans, can do to our planet. Thanks for posting.
Very nice photo. Captured at just the right moment, too, so as to include the cloud as a part of the sunset rather than as an obstruction.
Based on your comments about the photo being taken during an offshore trip, I'm guessing it was snapped from the deck of a ship. I mention that only because it looks like it was taken from some height, adding a nice effect to the reflection on the waves.