Warner isn't part of an artist movement, and isn't exactly going to be... His work is his own, and even though there are those who choose the copy him, he is his own work. He started about 15 years ago when he was taking pictures for food companies, and his work has blossomed into something way bigger.
The reason that I enjoy his work so much, is because of its diverseness. You will never see anything like this flipping through the pages of an art magazine. When I look at his work, it looks too cool to be true; but you find yourself staring at it for longer than you should, trying to bring it all in that the sense of it's realism.