Possible Clues:

• Painter coming back some time in the morning
• 'Un bar aux Folies-Bergère' artist
• A painter fellow (and French)
• 'Café-Concert' painter
• *'Before the Mirror'
• Painter of a Zola portrait
• 'Le Bon Bock' artist
• Gathered round an artist from France
• ''The Balcony'' painter
• Artist getting up two hours before noon