"You will therefore be taken to the Dune Sea, and cast into the pit of Carkoon, the nesting place of the all-powerful Sarlaac….in his belly you will find a new definition of pain and suffering as you are slowly digested over a thousand years."
-C-3PO, translating for Jabba the Hutt
One of the cleverer elements of the original Star Wars trilogy is that the heroes are constantly fighting monsters that are only partially visible: the tentacles in the trash room, the monster on the asteroid that they land inside of, and the Sarlacc, whose mouth alone is visible. It’s an old horror movie trope, and it works well.
In this diorama, some fan has ramped up the vagina dentata motif by adding labia and a clitoris in the sand dunes.