The dog is provided by Andre Connes and released under the GPL.
Artist: Gauguin, Paul. Title Arearea. Licence: Public Domain. Source: http://commons.wikimedia.org/wiki/Image:Paul_Gauguin_006.jpg
Artist: Pieter Bruegel the Elder. Title: The peasants wedding. Licence: Public Domain. Source: http://commons.wikimedia.org/wiki/Image:Pieter_Bruegel_d._Ä._011.jpg
Description: The Lady and the Unicorn (tapestries). Author: Pierre-Emmanuel Malissin and Frédéric Valdes. Licence: Free but requires the site and author. Source: http://www.galerie.roi-president.com
Artist: Vincent van Gogh. Title: Bedroom in Arles. Licence: Public Domain. Source: http://commons.wikimedia.org/wiki/Image:Vincent_Van_Gogh_0011.jpg
Artist: Ambrosius Bosschaert the Elder. Title: Flower Still Life. Licence: Public Domain. Source: http://commons.wikimedia.org/wiki/Image:Ambrosius_Bosschaert,_the_Elder_04.jpg