Beat the game loved it but cannot find the gallery pedestal and it's quite a tough and long ish game so any hints or help would help
The second smaller room with the stream of water going through it just before the large room with the big body of water that leads to the boss at the end. Follow the stream through the identical corridors which at the beginning lead you into the upwards curving tunnel. Instead of a tunnel you'll come out on a clearing that'll lead you to the pedestal.