Art has now become mass produced, so the value of 'unique' has vanished. Most people have a sunset photo or two, maybe they have what they consider "the sunset photo". It will be a good photo perfect in every detail.
Fifty years ago, it could have been of some value, since there were not many sunset photos in your vicinity. Now, the guy next door can produce similar images, within a few minutes, even if there is no sun.
Gears: Nikon D50, Tokina 12-24mm f/4 AT-X AF Pro DX
Location: Batu Rakit, Terengganu, Malaysia