It's certainly a very believable pic. I live on the coast and have seen my share of amazing sunsets over the water. I was never able to capture the beauty of God's handiwork because of my inexpensive cameras. I just figured this was a combination of great equipment and being in the correct place to capture the beauty of the moment.
The bottom line concerning any art depicting beautiful things in nature is that none can truly capture the grandeur of the Creator's handiwork.