Warwick is a stalwart of the UK comics industry, working in editorial illustration, animation, concept design, storyboarding and narrative art. His work includes a much celebrated take on Tank Girl, the books Nelson and upcoming Gungle for Blank Slate, as well as Derek Danger with his longtime collaborator Robert Ball. He has illustrated books for Kane Miller Books, Walker Books, Self Made Hero and magazines including New Republic, Investors Chronicle and frequent appearances in The Guardian.