those tips are a little too long for the liking. i think the ones in the second picture that are even with the tail look almost like they belong there.
i dont know about everyone else, but it seems like the general consensus on here is that the stock cans even though they seem to fill the gap between the tail and the wheel... look good but, i remember some time ago seeing a set of oval cans mounted on their sides (maybe GPRs?) so that the tips angled in toward each other under the tailight, i thought they looked good and thats why i've tended to like the MIVV pipes even though they are pricey because it kind of makes the bike look more sporty. i think the shorter tips keep the sporty look but the longer ones are starting to look awkward on the back of the bike.
just my 2cents