Both heads exist in the same space. One appears to have rough features like a male, and the other head looks more like a female, with long hair, and more delicate features. The female figure is set below in an upright orientation which is sixty degrees clockwise from the male.
The female portion of the image is colorized below to show its primary location within the feature. It looks very much like a doll's head:
The man's head is tilted to our left:
He is colorized below, soley to show his position within the feature:
The next image shows a comparison of the male and female, side by side:
The next image provides a colorization of both the male and female simultaneously, to help you visualize how they interlock in the feature:
Special thanks and credit for the original images taken by the Mars Global Surveyor - Mars Orbiter Camera (MOC) to: NASA/JPL/Malin Space Science Systems.
Raw Images Courtesy of NASA and ESA. Special thanks to EVERYONE who has contributed in the search for Mars anomalies. Also thanks to Google, Picasa, ImageShack, and Photobucket.