Boxwood and Birch, Parc André Citroën, Paris, France. 

This is one of the public garden projects that Gilles Clément was involved in (along with landscape designer Alain Provost and architects Patrick Berger, Jean-Francois Jodry and Jean-Paul Viguier). The wedge-shaped parterre, developed in the 1990’s, is filled with block-shaped boxwoods deliberately clipped at irregular heights. 

Clément’s Royal Gardens of Blois, here.