Possible Clues:

• "The Dance" painter
• Painter harboured by diplomat is secure
• "The Piano Lesson" painter Henri
• 'The Piano Lesson' painter Henri
• Shot of pool featuring occasional touches of this artist
• Henri --, 1869-1954, French painter and sculptor
• “L’Atelier Rouge” painter
• "The Dance" painter Henri
• Format is settled for accommodating artist
• Not entirely uplifting process, it amuses artist