here's another reference John is working off of the underground stairwell
Latest on the film from Dave Sim - yes, he blogs every Friday! http://momentofcerebus.blogspot.com/2014/12/weekly-update-19-december-14-on-march.html
also, here's an armchair for the new character he selected from some references faxed to him
low res rough test render
Dave Sim on list of "Graphic Design Masters In Comics"