I found these blue flowers in front of St Matthew's Catholic Church along La Rue Bechervaise. They are called "Hortensia" in French. Here's the link to the Google Street View:GOOGLE
"St Matthew's, from Rue Bechervaise" 20x20cm, oil on 3D canvas (private collection, Horsham, UK)
My painting is about 4.5 x 4.5 inches this time, yet I still practically missed the deadline! "The Bearded Iris" 4.5x4.5cm, oil on canvas (private collection, Brussels)