I am attempting to progress through the sewer but I am at a loss. I understand I need to bring a lantern to a statue to remove certain walls, but I don't know where the second statue is. I'm also not sure how to open the gate on the left, I assume it can be opened after some progression, but how to progress is unclear.

I found that the issue was that the camera was zoomed in, and I couldn't cover the full bottom area for the puzzle.