The street artist uploaded before and after pictures of the artwork to Instagram on Monday.
Banksy London tree mural: Artist appears to confirm work is his own
Related Posts
University Challenge star helps Essex families embrace maths
Nearly half of parents do not feel confident helping children with maths, Essex County Council said.
Mystery Anglo-Saxon object found at Langham baffles experts
Similar objects have been found before, but no-one knows their use, says a historian.