Untitled (The Beatles in Autopsy), by Curt McDowell (1968) is stylized but based upon photographs that the Beatles modeled for.
A whimsical version of the famous Abbey Road album cover.
And finally, four "real" Beatles penises, carefully labeled (clockwise from upper left, Paul, George, Ringo, and John). It's actually "The Beatles in America," an oil painting by Jonathan Gent put on display in 2013 at the Museum of Liverpool. It was part of a Beatles-themed exhibit that was to be auctioned off for charity. Unfortunately, the painting was defaced by vandals and unusable.