Canadian illustrator and animator Bradley Cayford first came to my attention when he directed this excellent Jimmy Swift Band music video for Copernicus Studios way back in 2006. Since then Cayford has joined the game developers, RocketOwl. Working as the Lead Concept Artist, he exercises his skills in environment and character design as well contributing to the ideas and theories of the games.
His combination of whimsical landscapes, vibrant colours and loose pencil work makes for a superbly unique style. You can see some of his illustrations over on his blog, but be warned, it will only leave you wanting more!