Let's Talk Lee Sin Visual Upgrade
http://cdn.segmentnext.com/wp-content/uploads/2013/09/Diablo-3-Monk.png (Pictured here, the Diablo 3 Monk, to get the apperance ideas flowing)
When Garen received his VU, all of his abilities were tied together with a single thematic scheme: "righteous energy" as Grumpy Monkey put it. Garen's particles look super nice and fit him well, but what about Lee Sin? As of right now, his abilities are all over the place: a soundwave, a fiery blast, a flaming roundhouse, a paper-lantern-esque shield, etc. What could tie all of his abilities together? Swirly white energy; fire; "sound"; etc.
What else should be focused on for Lee? Really, this is an open conversation.