The official blurb reads like this:
"Keep your eyes open whilst you're about and about this spring. Interventions is a long-term project, where artworks are placed into various public spaces. It serves as a platform for a different type of art exhibition, one which is nomadic and discovered, engaging with wide and unsuspecting audiences. On display in Interventions Part 2 are artists Andrew Bracey and John O'Hare"
In particular we were searching for one of Andrew Bracey's palette parasites however could not spot it.
If you've had some better luck in spying it or one of John O'Hare's pallets get in touch...