Hello! Thank you for reaching out.
There should be a harp to the right of the statues. Interact with it and it should play. The harp should play in groups of strings. It should be something along the lines of: group of strings, pause, group of strings, pause, and so on. For example, the first group has 3 strings, what you should hear is 3 strings close to each other followed by along pause. This indicates that the first statue should be facing towards the number 3 on the floor.
I hope this helps. If not, please do reach out again.