Header wide background: View on Dordrecht from the mouth of the Noord, 1629. Adam Willaerts, *1596 – †1656. Wikipedia Commons, GNU Free Documentation License.
Header center background: View on the Oude Maas near Dordrecht 1651, Jan van Goyen, *1596-†1656, Wikipedia Commons, GNU Free Documentation License.
Homepage: Painting photo’s FromWikipedia Commons, GNU Free Documentation License, slider photo’s from C. Kloosterman.
Photographs made and owned: C. Kloosterman.
Other pictures, photo’s and or other graphic material are files from Wikipedia, licensed under the Creative Commons Attribution 2.0/3.0 Generic license or from Wikipedia Commons (commons is a freely licensed media file repository).
Slider photo’s on homepage: C. Kloosterman
Shark pictures: C. Kloosterman and some reproduced with permission from The White Shark Project, Klein Baai, South Africa.