There's something about this that makes it look kinda blurry but at the same time it's also a really interesting effect. I feel like if I put on those red/blue glasses this would be 3d or something with that effect. (And if you don't mind me saying I think Fishbones looks too fat/short and I think the hand on Jinx's chest might be too small?)
By the way, it's never been confirmed that they are sisters. They have quotes in game that mention they each have a sister but it's never been stated anywhere that these two are related. From what information we've been given they're just rivals.
They're not sisters... I think. B/c in the Howling Abyss, one of the shopkeepers states (if you're playing Vi): "You look a lot like your sister! Wait... I'm not supposed to talk about that." And Jinx says,"You think I'M crazy? You should see my sister." Jinx looks nothing like Vi and Vi's not crazier than Jinx, I believe lol
But Riot never said anything against it; they're actually just having fun watching fans try to figure it out xDD So they could be sisters, I guess. :3
Yeah and about that quote "You look a lot like your sister" i don't think that's true because there are whole their speeches on website even these which they say only in special places and there is nothing like that.
Actually that's just fan SPECULATION. Both characters have quotes in game saying they have sisters (the shopkeeper Lyte on HA mentions Vi's and Jinx says "You think I'm crazy? You should see my sister."). However, nowhere is it ever confirmed the two are sisters it is only confirmed that they are rivals.
It looks really nice the shading/coloring is pretty awesome, only thing that bothers me is jinx her left hand and fishbones, fishbones seems a bit too short, but that may be because of perspective (like its turned?) but her hand looks a bit odd, the possition should be a bit more to the right (on the drawing). tried to hold my hand like that and It kind of hurt my shoulder xD
But nonetheless It looks really great, specially the faces. Vi turned out really nice keep up the good work.