Artist's drawings take between three and six weeks to create and sell for up to £5,000 each. These might look like photographs, but it's not all black and white when it comes to the work of this artist.
Despite looking like they have been captured on a camera, these are actually hand-drawn images created by hyperrealist artist Paul Cadden. The 47-year-old, from Scotland , is able to recreate photos in amazing detail, often just using only a pencil.
From the wrinkles on a woman's face, a puff of smoke from a cigarette or dripping water - Cadden's drawings look unbelievably realistic.