Eton College NHM: Coral Core
Wavier in large.
I do like the subtle lighting in the NHM... I photographed some of the various corals catching the light(s) today; some of them are gloriously geometric, while others are all folded over like abstract origami sculptures.
I was also pleased to see the passerines bustling around in the sunshine: lots of tits on the feeders, and a robin hopping around on the branches, amongst others.
I've added them to my Eton & Windsor 2017 album (right from here).