When Dave was doing head sketches during the "Cerebus TV" phase, I would request multiple sketches and ask for them to be themed. Dave is good at taking a suggestion like this and running with it. This request was for 4 drawings, done as the four seasons. Here is what came back.
This request was for 5 drawings, featuring the original X-Men. Here is what came back.
This request was for 16 drawings, done with the years, covering "the ages" of Cerebus. I suggested some dates for the later ones based on the published timelines, partly because I have always thought something was out of whack. Cerebus's son either ages much more slowly than Cerebus (we see ShepShep as a kid, with Cerebus looking middle-age-ish, but when ShepShep is an adult, Cerebus is downright ancient). Any Aartvarks out there want to put Cerebus and ShepShep's images against a time line and see if they make sense?
Anyhow, here is what came back, including the question marks where I had suggested dates.