Picture 5 shows a picture of some sort on one of the pillars. After you get out of here, go look at the pillar (it's the one next to the porch swing) and see what you see.
Hint 8
Picture 6 is the odd stone with a T on it near the entrance, the one where you found the scavenger hunt page. But it looks very different than it did when you were there.
Hint 9
After you get out, go pull the weeds aside to find --
Hint 10
-- the Ruins, the burned-out shell of the building where Charlotte was killed. Gasp!