Hand 4: I wouldn't worry solely about what hand you are trying to project by your line...you also need to include what his line represents, which is at the very least a flush draw, and more likely a KQ/KJ/AA type of hand.
And your line really doesn't say that you have a K - it just looks all tricked up and your opponent really would have little idea of what hand you held...great if you hit a wacky two-pair or a straight - not so hot if you want to push hm off a one-pair hand with a weak river lead.