The UK’s extraordinary marine life is being celebrated with the unveiling of a colossal mural of a cuttlefish to mark the start of National Marine Week. Wildlife Trusts and Hampshire and Isle of Wight Wildlife Trust commissioned the outdoor painting by the artist ATM who decorated a Portsmouth City Museum building, creating a new landmark in the city, and adding to its rich street art offering. ATM is well known for his striking wildlife street art, particularly birds.

This is ATM's first marine portrait, which shows a characterful cuttlefish on a wall donated for the artwork by Portsmouth City Council. The picture took three days to paint, freehand.