Rudolf produces bold, large scale portraits of people he has met. Felt tips are used to fill large areas, creating bright, cartoon-like depictions. Features are exaggerated – large glasses placed comically on the bridge of a nose, a ginger ponytail swinging animatedly. The portraits are always accompanied by the age of the subject, sometimes along with personal details for example their height, and a pithy quote, producing work that stands out brazenly from its frame.