THE WORLD OF ART

The artist is not a person endowed with free will who seeks his own ends, but one who allows art to realize its purposes through him. As a human being he may have moods and a will and personal aims, but as an artist he is 'man' in a higher sense - he is 'collective man,' a vehicle and moulder of the unconscious psychic life of mankind. (Carl Jung, 1930)

Usually it's simple raster images.If you want to fill all background you should select desktop wallpaper size with the same size as your display resolution.The most displays at the moment has resolution 1024x768, 1280x1024, 1600x1200 and higher.Your screen resolution is 1024x768