The simple answer is - any original work made in any medium
whether visual, musical, dramatic, literary, film, video, TV or sound broadcasts, including artworks (paintings, sculpture, drawings and prints of any kind, including photographs).
These images and objects are protected for the entire life of the creator plus 70 years after his or her death, when ownership passes to their heirs or estate. Reproduction or unauthorised use of any copyright protected material is illegal without the owner's permission.
Copyright is not ‘registered': it is an automatic right that can be claimed by any creator of original work and enforced through the courts.