Ever surreptitiously admired a pulp fiction book cover? Seriously, some of these are quite superb.
One of the masters was Paul Rader, who made a bit of money this way. He was also a noted portrait artist, and it’s said that there’s a modern setting crucifixion scene by him in a church in New York State. That would be worth seeing. His Tumblr galleries are quite something, if you like lurid, with considerable imagination and skill.