Shoeless Trivia: Episode 190 (Art)

These are always fun.

1. What 17th century pope is depicted in the two portraits seen below, one by Diego Velázquez, the other by Francis Bacon?
2. What titular fruit has been been obscured twice in this Salvador Dali painting?
3. What skateboard and apparel brand has admitted to basing its logo off the style of Barbara Kruger, a sample of whose work is shown below?
4. The John Everett Millais work seen here is named for what character from Shakespeare?
5. This Benvenuto Cellini work is functional as well as artistic. Per its common title, what substance is it intended to hold?