Thanks all
@ Wingnut- Pyramid is a simple foam core construction to keep the block count low
I used Hirst Mold # 200 (the wall mold) around the outside...surface tiles, stairs and wall bricks from side pieces are Mold #60 (Prison Tower) Pillars are from Mold # 65 (Ruined Tower) The face piece is just an extra model base I had from Scibor Miniatures from one of there "Ruins" lines.