Chaos Renegade Medusa from Forge World, with a diorama featuring Cadian shock troopers.

The diorama base was built using an old picture frame and plywood, while the terrain itself is a mixture of cork and texture pastes. The walls were built from plaster, with straightened paperclips placed in the mould halfway through pouring to simulate rebar. Once set, the walls were broken up with a hammer and the paperclips snipped in the appropriate places.

The posters were printed out and soaked in sepia before being crumpled and glued in place.