(1976), Twombly began to evoke landscape through colour (favouring brown, green and light blue), written inscriptions and collage elements. In 1978 he worked on the monumental historical ensemble Fifty Days at Iliam, a ten-part cycle inspired by Homer's Iliad; since then Twombly continued to draw on literature and myth, deploying cryptic pictorial metaphors that situate individual experience within the grand narratives of Western tradition, as in the Gaeta canvases and the monumental Four Seasons concluded in 1994. In an essay in the catalogue to the 2011 Dulwich exhibition (see below), Katharina Schmidt summarizes the scope and technique of Twombly's œuvre: Cy Twombly's work can be understood as one vast engagement with cultural memory. His paintings, drawings and sculptures on mythological subjects have come to form a significant part of that memory. Usually drawing on the most familiar gods and heroes, he restricts himself to just a few, relatively well-known episodes, as narrated by poet-historians, given visible shape by artists and repeatedly reinterpreted in the literature and visual art of later centuries ... His special medium is writing. Starting out from purely graphic marks, he developed a kind of meta-script in which abbreviated signs, hatchings, loops, numbers and the simplest of pictographs spread throughout the picture plane in a process of incessant movement, repeatedly subverted by erasures. Eventually, this metamorphosed into script itself. However, in a 1994 article Kirk Varnedoe thought it necessary to defend Twombly's seemingly random marks and splashes of paint against the criticism that "This is just scribbles – my kid could do it". One could say that any child could make a drawing like Twombly only in the sense that any fool with a hammer could fragment sculptures as Rodin did, or any house painter could spatter paint as well as Pollock. In none of these cases would it be true. In each case the art lies not so much in the finesse of the individual mark, but in the orchestration of a previously uncodified set of personal "rules" about where to act and where not, how far to go and when to stop, in such a way as the cumulative courtship of seeming chaos defines an original, hybrid kind of order, which in turn illuminates a complex sense of human experience not voiced or left marginal in previous art. Together with Rauschenberg and Jasper Johns, Twombly is regarded as the most important representative of a generation