Booksketch by Daniel Henrotin known to the comic business as Dany.
Additional the book.Daniel Henrotin, who signs with Dany, is best known for drawing beautiful women, as can be seen in his series 'Olivier Rameau' and the several 'Blagues Coquines' gag pages he created. He was born in Marche-en-Famenne and obtained his degree in graphics and advertising from the School of Fine Arts in Liège in 1964. He was hired as the assistant of Mittéï in 1966, who was assisting Greg and Tibet on their comics at the time. The collaboration was cut short due to Dany's military service. However, during this period, Dany found the time could find the time to do several short historical stories and illustrations for Tintin magazine.
More at https://www.lambiek.net/artists/d/dany.htm