Street art - Street artist - Dolk - Bergen [Norway] - same league as Banksy. Dolk Lundgren reaches a wide audience with his stencils from children to old people. Mostly funny but sometimes with a more serious touch.
A Siren isn't really a sea monster but sailors have told tales of these beautiful women that sing to you and seduce you into their trap of bloodlust. They are said to eat the sailors alive or drowned them deep in the ocean.