phrase used chez ses personnages

Question

chez ses personnages - I don't understand why this is a translation of in his characters.

Céline Pickard · Accepted Answer

Bonjour Mary,
"Ses personnages" refers to the characters/people painted by Redon ; therefore, "his characters". Check the link here: personnage
I hope this is helpful.
Bonne journée !

Maarten Kamp · Answer

Mary, 
The following links cover many uses and meanings of ‘ chez ‘ - it is multipurpose, and used as a preposition for nouns representing ‘ living things ‘, but not all living things. 
Predominantly it is used with nouns relating to people, but sometimes extending into use with other animals depending on context. 
Even though these are characters in a painting, they are representations of people, as is the word ‘ personnages ‘ here.
 https://www.wordreference.com/fren/chez
 https://www.larousse.fr/dictionnaires/francais/chez/15246#difficulte