I just finished the second season of Jessica Jones this weekend and there’s an important octopus reference in it so that was what I thought of when I saw the tattoos (which I was surprisingly, for myself, very attracted to!).
As for Ivan, I think he was going to tell Saul that he was right about Yevgeny and where he was…? Maybe, “watch out, old man. This dude doesn’t play by your rules.”