Top image via: Sven De Kerpel / wiki Detail via: GeS / flickr
Stained glass window in the hôtel Saintenoy (Vitrail La Vague du grand salon de l'Hôtel Saintenoy)
Art-Nouveau window in Brussels architect Paul Saintenoy, stained glass artist Raphaël Évaldre.
From wiki: “Raphaël Évaldre was born in Lille (France) March 22, 1862 and died May 25, 1938. He was a follower of Louis Comfort Tiffany and Art Nouveau in Brussels. He collaborated with many Art Nouveau architects: Victor Horta, Paul Hankar Paul Saintenoy, Leon Delune or Jules Brunfaut.”