I played a little bit yesterday with freeimagegenerator.com. (if you're on the BookFace, I posted one on my personal page.) Copy pasting in bible texts (Excerpts from Genesis 6 and 7, on the Great Flood, Isaiah 5, on the prophet's vision of God enthroned.) would sometimes produce really striking images. "Edlritch penguin" produce an image that could have really come out of Lovecraft.

"Nazi zeppelin in the sky over a bucolic rural landscape"
I gave it just the text from Rev 4:6-8:
"In the center, around the throne, were four living creatures, and they were covered with eyes, in front and in back. The first living creature was like a lion, the second was like an ox, the third had a face like a man, the fourth was like a flying eagle. Each of the four living creatures had six wings and was covered with eyes all around, even under its wings. Day and night they never stop saying: "Holy, holy, holy is the Lord God Almighty,’ who was, and is, and is to come."
and it gave me several disturbing variations on pics of Obama sitting on a throne. (where did it get Obama out of that??) Perhaps the passage was too long and it just zeroed-in on "throne"