Eyes, Mouths,ears and noses

Here's some sketches on various things seen on the face. I have been sitting and checking up tutorials and learning from them since the parts on the face is something i find hard to draw.

Tutorials used:
http://www.artinstructionblog.com/drawing-the-human-eye-tutorial
http://www.youtube.com/watch?v=6EsT-9crriY&feature=iv&annotation_id=annotation_420663

(comments will come up later.... )