Face the snake-head door and treat it as the top of the diagram. The nearest pair points south / north-west, the middle pair north-east / north-west, and the far pair north-east / south-west.
Line up the room
Use the door as your reference, not your arrival direction. There are two columns of three pedestals. The chart below is a schematic, not an in-game map.
You are here, facing the door ↑
Fill every pedestal
All six positions need a statue. NPC Tips reports five available statues and a sixth made at the Statue Mold with 16 Clay. Handle the carried statues carefully.
Already rotated them?
Match the final directions rather than adding a fresh set of turn counts. Previously rotated statues do not share a common starting point.
This solution is for the six crypt statues. It does not apply to the four gem statues or a statue holding an offering plate.
Sources & version notes
Two published guides agree on these facings and cite Steam community solutions. The 16-Clay mold cost is reported game-file research by NPC Tips; we have not independently inspected those files.
Banner: official Steam promotional screenshot, used as general illustration. It does not depict the exact solution.