Who was in the photo collage that hung above grants mantle

When Grant is giving Vivian a tour of the house, one of the rooms visited is Grant’s bedroom.  Within Grant’s bedroom, on the mantle are a bunch of pictures in a collage.  Within this collage are pictures Grant has of his parents.

usually, a falcon can kill an owl, and horses don't normally eat each other.

a.) literature that explores grotesque characters and eerie, violent occurrences in a dreary setting.