Joana Fischer's Instagram "The LINE Drawing Project"

See Joana Fischer's Instagram called The LINE Collaborative Project @THE_LINE_DRAWING_PROJECT. Every artist involved is given a drawing and then responds with their own.  It could never end. Its website is 

Adler Guerrier

Gabi Gutwirth

Judith Berk King

Edward A. Kingsbury III

Nicole Lenzi

Tilly Strauss

Joana Fischer