My name is Arifin Noviyadi, I'm a graphic designer more than 3 year experience with Line Art Vector. I was created more than 300 high quality design.
As for the design that I can make into a vector line art is as follows:
photo
cartoon
manga
hand sketch
building
etc.
You can find some example for my design here >> http://goo.gl/yKjKbN
Please send me photo, hand sketch, etc you need me to convert to Line Art Vector with high quality picture (large pixel).