"Terror rose in Isabel like the water filling in the boat. She couldn't drown. Couldn't disappear beneath the waves like Lita. Like Ivan. No. No!"This is character VS nature because it is Isabel VS nature. In this case she is against drowning and the sharks/death.
"Josef saw Otto Schiendick lingering in the doorway. Schiendick grinned at the panic in the room and josef felt his blood begin to boil." This is character VS character because they Otto Shiendick is specifically out to get Josef, a character, vs a character.
""No," Josef said. He was too old to donce with his mother, too embarrassed."This is character VS self because even though if he did want to dance he was too embaraced. He feels that he is a man now and that he is too old for certain things.