A Head Full of Faces

A little while ago I was working on this ink-pen drawing; as I had recently accepted my fascination with the most complex body part, the face, I challenged myself to fill a page with faces. I ended up throwing in a quick self-portrait in there, making it seem a little more personal. Here is where I finished. At that time I felt I had met my challenge however, coming across the drawing again today and taking the time to scan it I have begun to second guess myself....so I post it here, for you to see...what do you think world? Let it be??? or Work it some more??