There are a number of common poses for women in pictures and photography, including having the model in a standing, sitting, or prone position. Several common poses have the model laying down in some way.
One common pose has the woman laying on her stomach with her arms crossed in front and her legs crossed up behind her. A second position has the model laying on her side while holding her head up with her hand and looking directly at the camera.
A common sitting pose has the woman sitting with her knees pulled together and her arms crossed together and to one side of her face. Standing or close up positions include the model looking into the camera with her hands holding the sides of her head with one hand higher than the other.