Outside Tate Britain, my bike in front of.....some massive slugs.
Explanation here:
And yes the artist is called Monster Chetwynd, and as its not clear, Monster is female. I was thinking what kind of cruel parents name their child Monster, but I've just looked it up and according to Wikipedia she was born Alalia Chetwynd, but changed her name and from 2006-2013 was known as Spartacus Chetwynd, she then changed it again, and from 2013-2018 she was known as Marvin Gaye Chetwynd
. Monster Chetwynd has apparently been her name since April this year, who knows by Chrimbo she may be Raving Loony Party Chetwynd.
https://en.wikipedia.org/wiki/Monster_Chetwynd