<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/lecates/2401387207/">Here's</a> a version in monochrome.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/23688516@N00">lecates</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/lecates/2399855932/">octopus's garden</a>