They are geometrical forms which are said to act as a template from which all life springs. They are named after the ancient Greek philosopher Plato. To the Greeks, these solids symbolized fire, earth, air, spirit (or ether) and water.
A very detailed, but stylized floor texture with a Normal map added for lighting detail. The swirls in the stone add a whimsical and fun element that make me thing of a fantasy setting and is something I personally would like to attempt.