Dreadful Sanity 
1st puzzle: Mosaic and statues of Fen'Harel (1 mosaic, 4 statues) watching over the ritual.
2nd puzzle: Mosaic of Sylaise and statues of Andruil.
3rd puzzle: Mosaic of June, statues of Dirthamen (right) and Ghilan'nain (left).
Yep, still looking for meaning where none is.