The One With Barry & Mindy's Wedding - S2-E24
Continuity mistake: Phoebe takes out her gum before kissing Joey. After she kisses him, she makes a comment about it and her mouth is empty. In the next shot, she sits down and is chewing. But she doesn't put the gum back in. (00:02:22)
The One With Barry & Mindy's Wedding - S2-E24
Continuity mistake: When Rachel is worrying about how embarrassed she was, her hands move from her head to her hat with no time to move them. (00:11:20)
The One With Barry & Mindy's Wedding - S2-E24
Continuity mistake: When Chandler is sitting in his kitchen with Monica and Phoebe, talking to the woman on his computer, the camera is on Monica, showing part of the computer screen. The screen is blank, indicating that the computer is off. In the next shot, the sound of an instant message is heard, indicating that the computer is in fact on. (00:13:10)
Answer: The painting doesn't have a name, and if it does it is never mentioned in this episode.