Some artists make a splash from their first entrance. With enough talent, timing, and tenaciousness it’s almost a given. In the case of Argentinian-born Marta Minujin, she possesses all those attributes and more. Over a six-decade career that embraced soft post-war soft sculptures, large-scale fluorescent paintings, psychedelic drawings, and pioneering pop art performances, she has collided head-on with her critics.