Quinkhard, Julius Henricus – Zelfportret met zijn vader en leermeester Jan Maurits Quinkhard naast hem staande, 1757 Rijksmuseum: part 1

The picture has something of this: people, two, man, woman, three, sit, group, seat, furniture, portrait, family, indoors, wear, facial expression, room, book, education.
Perhaps it’s a painting of two men sitting at a table, one reading a book and the other looking at a piece of paper with a pen in his hand.