The manga "style" is actually a name for a collection of different styles that range from being quite cartoony and simple, to being realistic and intricate. This video tutorial will show you how to draw a face in one of the more complex...

This video shows how to draw a realistic looking eye. It starts off looking simple, but then shows how, with some simple techniques, you can really get the drawing to look very realistic. http://www.youtube.com/watch?v=DkeF7gfyM-U