Possible Clues:

• Painter's exotic star model
• Botticelli or Michelangelo
• Leotard's divertingly worn by male artist
• Picture someone nearing the end of his days in the staff room?
• Art seldom ruined by him?
• Clumsy model sat for Rembrandt's first great painting
• Revered painting
• Great pre-19th century European painter
• Painter who was born long before his pupils?
• Rembrandt or Van Eyck, for instance (or one of their works)