photo courtesy of wikipedia
André Arfvidson designed the studios where my main character passes his Parisian residency in the story Parisian sky. The facade of 31 bis, rue Campagne Première is covered with polychrome tiles. The tiles, not flat, are various shades of ochre and reflect warmth from the Parisian Sky.
How can the Parisian sky ever be warm, it's grey, like 320 shades of grey, the other 32 days may be various blues, especially when the north wind is whipping.
Arfvidson, (what kind of name is that?) won a city contest for decorating facades. Originally the building held twenty ateliers for lucky artists like Man Ray.
Here is a video: