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.
jenniferaberin: “kingsguard ” I just really love the shapes in this one. Even her facial bone structure matches her breastplate! The designs on her armor aren’t drowned in small details, but they add to her air of command. We talked about shape size.