 As was the case with most of Hood's projects, the sculptures and decorations were executed by the American artist Rene Paul Chambellan.The tower features carved images of Robin Hood (Hood) and a howling dog (Howells) near the main entrance to commemorate the architects.The top of the tower is designed after the "Tour de beurre" (″butter tower″) of the Rouen Cathedral in France, which is characteristic of the Late-Gothic style, that is to say, without a spire but with a crown-shaped top.