En Masse is a Montreal based, multi-artist collaborative drawing project that creates large-scale, highly spontaneous drawings in black and white. En Masse website here.
Some of the En Masse projects in which I've had the pleasure of participating:
Carousel x En Masse from Carousel Agency on Vimeo.
En Masse @ Musée des Beaux Arts de Montréal ( Big Bang Exhibit) from Fred Caron on Vimeo.
John St Agency 2015
Musee des Beaux Arts de Montreal 2011