An old post – but we omitted acknowledgement of the author of the picture and also reference to license:
We believe original source: https://en.wikipedia.org/wiki/Natural_History_Museum,_London#/media/File:Natural_History_Museum_London_Jan_2006.jpg
License: https://creativecommons.org/licenses/by-sa/3.0
Photo by DAVID ILIFF. License: CC BY-SA 3.0
Photo resized.