Franck Slama is a French artist who sticks mosaics on walls in the streets all over the world, I like to take a photo of its inviders every time I see one.
If you want to check if there is one in your town : https://www.space-invaders.com/world/
I like your Paris serie of today. This one is my preferred one, I did not know that artist. I checked on the link, but there is none of his work in places that I have regular opportunities to visit.