That's 'Mr. B' in the pool, stopping the lady in red in her tracks.
Before he drowned he lived here, in the Nordic pavilion in the Giardini in Venice.
For Mr. B is an imaginary character created for 'The Collectors,' an art installation filled with the works of over a dozen artists.
It was the standout pavilion for me. (Each country gets their own venue--or pavilion--to showcase their nation's work.)
And here's a great article with the Scandinavian art duo Michael Elmgreen & Ingar Dragset--it was their master idea--in Interview Magazine