Next, I will throw in a few more edges around the corner of the eye to create the tearduct. These edges will also help define the wrinkles on the ridge of the nose. I'll also throw in another edge around the bottom of the brow to help make it more distinct. Then, I split up the faces under the nose to create more information for the upper lip and cheek bone.
Now that we have the shape of the eyelid pretty well defined, we can go ahead and create the eyesocket for this guy. Start off by creating a loop just inside the eyelid loop. This will define the thickness of the eyelid.
Next, create two more loops, an inner ring and an outer ring. These will be used to create the depth of the eye socket.
Grab all the points of the inner ring and push them back in the Z direction (into the head) then take all the points of the outer ring and scale them informally to create the underside of the eyelid. If some of these points penetrate the outer surface, just simply move the points back in space. Now you should have a fairly descent looking eye socket.
Next I'll split the eyes, brow, cheek and mouth to further the detail. While I do this, I'm getting rid of any triangles and five sided polys that I come across by running them into the newly formed edge. This also strengthens my edgeloop.
Notice the difference between these 2 steps. Notice how the loop now fits nicely around the brow, eye and cheek whereas before it didn't.
Now that I've got the loop around the eye cleaned up, it's time to go in and fix the loop around the nose. Notice how I have a lot of triangles and the edges aren't exactly flowing with the curve of the laugh line. I'll fix this by running some new edges in the right direction and deleting out the old ones.
Notice how the laugh line is now clearly defined.
Next, finish off the loops at the top of the head. Bring the edges down through the back of the neck to give that area more definition. You can also add on some of the edges that define the muscles of the brow. Then, split up the lower lip a little so that we can begin working on the inside of the mouth.