Joey: How you doin'?
Chandler: If I were a guy, and...did I just say IF I were a guy?
Rachel Green: Oh my God, I'm Kip.
Joey Tribianni: You're not Kip.
Rachel Green: Do you even know who Kip is?
Joey Tribianni: Who cares? You're Rachel. Who's Kip?
Chandler Bing: Kip was my old roommate.
Joey Tribianni: Oh, THAT poor bastard.
Answer: The painting doesn't have a name, and if it does it is never mentioned in this episode.