The interlocking biomorphic forms in Trial represent the increasing complexity of Marca-Relli's collage technique during the 1950s. The artist has deliberately obliterated any recognizable sections of human anatomy, yet the work suggests a myriad of jostling figures. This vast composition combines an extraordinary variety of overlapping shapes, textures and contrasts to create a sense of movement that was inspired in part by Paolo Uccello's monumental battle scenes.