Identify a painter from an image please

HELLO too, it can help motivate volunteers to respond:
https://www.commentcamarche.net/infos/25855-charte-d-utilisation-de-commentcamarche-net-respect-d-autrui/

For the rest, go see a professional, who can take a look in person, there isn't one here.....

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Reading the responses is good... Responding to them afterwards, out of courtesy, is better...