describe the significance of the pictures on the walls in the boys room?

From the text:

"Finny had scotch-taped newspaper pictures of the Roosevelt-Churchill meeting above his cot (“They’re the two most important of the old men,” he had explained, “getting together to make up what to tell us next about the war”). Over my cot I had long ago taped pictures which together amounted to a barefaced lie about my background—weepingly romantic views of plantation mansions, moss-hung trees by moonlight, lazy roads winding dustily past the cabins of the Negroes."