A handful of the Karnival branded decks from Big Blind Media in the UK (printed by USPC, most of them were Bicycle-branded) have all-unique art for every card. The Dead Eyes were one deck that stands out, for sure.
Anne Stokes, a very Gothic-style artist, has a handful of deck designs under her belt - each face is unique artwork.
There was a UK clothing brand that was releasing all-unique faces on their decks, at least some of them - can't remember the name off the top of my head. I do recall they had tattoo flash art on each card face, which was pretty cool.