First figures, two Atlanteans in armoured diving suits:


And the Four A Miniatures "Creature":

The Atlanteans are made from the new Games Workshop Dark Eldar Cabalite Warriors box. Plastic, and quite easy to modify. Not as versatile as I first thought, but still a good basis, and some design elements are very "aquatic". I just added some rivets and "gills/fins" from plasticard at some points, and painted it in various levels of brass with VMC Verdigris Glaze weathering.