Complex sentence: The Circle presented itself as an assembly of young elitist writers with George as undisputed head, mentor and saviour, similar to the esoteric circle around Albert von Schrenck-Notzing or other poet collectives at that time, and already mocked by contemporaries like Otto Julius Bierbaum.
Split into simpler sentences: The Circle presented itself as an assembly of young elitist writers with George as undisputed head, mentor and saviour. The teacher-student ratio formed a constituting characteristic of the group, similar to the esoteric circle around Albert von Schrenck-Notzing or other poet collectives at that time, and already mocked by contemporaries like Otto Julius Bierbaum.