Three Excellent Illustrators

Jonathan Ball is an illustrator and designer from Cardiff, UK who has immersed himself in a number of creative fields. He is well-known for creating idiosyncratic and skillful artwork that’s regularly infused with original characters.
http://www.behance.net/poked

Chris Leavens was born and raised in Pennsylvania. He breezed through school and spent a good deal of time doodling, drawing robots, spaceships, and bizarre creatures. Currently, Chris is focusing on creating vector art using Adobe Illustrator. He produces most of his artwork — from start to finish — entirely in Illustrator, including textural elements. His work incorporates absurdity, anthropomorphisms, and a healthy dose of humor. Even you look at his portfolio site, it looks definitely playful!
http://www.chrisleavens.com/

Mari Katogi is a japanese freelance illustrator, living in Tokyo. She is basically working on the design of book, magazin, comic, and web. The reason I like her illustrations only because it shows the feeling of British Victoria style. 

http://katogimari.com/