These are Izaya Orihara's little twin sisters,Mairu and Kururi. They are just as twisted as him (if not a little worse) but I just think they are adorable.
I vectored the girls from this scan:here
I had alot of fun doing this wallpaper. So after vectoring them I messed around with the background for a few days. I finally came across this tutorialand than changed around the colors a bit.
The vector can be found : here.
Enjoy! ♥