Depicting their relationship in anything is hard, but I agree that it's probably more so in art than it would be in fiction. Since with fics you have SUUU MANY WORDS and in art you have pretty much one shot. Um, if that makes sense. But you definitely succeeded in making this symbollic and it doesn't matter what Klavier's eyes are trying to tell as long as they're telling something and not entirely open about what's going on with him that's what matters.