In his last year, Aroch included many ars poetica elements in his work. As part of this approach, Aroch included in his work many variations on characters taken from literature. Examples include his painting “Two Cubes” (1968) and his series of paintings of rowboats from 1968 to 1970, in which details from the textbook of Christian Ludolph Reinhold are cited, “In the Style of Derain’s ‘Ball of soldiers in Suresnes’” (1967), based on the work by André Derain. etc.