One thing you have to consider when you are using low polygon models is that a lot of the detail will be in the texture.
While it takes a bit of practice to say what will be what - a general rule of thumb is to look at the face as a silhouette. If you don't see it sticking out - it doesn't exist on the mesh.
Virtual Worlds - Rebuilding the Universe one Pixel at a Time.
Take a look - daily news and weekly content updates.