Hello, about a Belgian telegram!

This telegram was published in 1962, and this illustration is of a large family, who is the author of this painting?
Kind regards
Thank you very much!

https://www.douban.com/note/809947829/?_i=9774569GAxLsEj
Hello, Jean Philippe
Kind regards
Thank you very much!

Hello, Jean Philippe
I'll trouble you again.
In what year did this Belgian painter create this painting? Is the name of this painting "Family"?
Thank you so much!

I didn't find any information on the Internet.

Zitat von Jean Philippe

xiaolin

I am sorry, but I was unable to find those details.

Hello friend,
apologies for being late. On the Internet, I also didn't find any information about this painter, thank you very much for your help, thank you