Hey Gaming Proverbs, I would have to agree with Mike on this, I think you really would need to " tidy" up the proportions of your characters head before contemplating sending it out to any job.
I think the eyes are too hi and too small as they cross the head. Remember that the head is 5 eye widths across and also the eyes are pretty much the halfway point from the chin to the top of the head, the top of the ears line up with the bottom of the brows and the lower part of the ear line up with the the bottom of the nose.
This is pretty much how proportions are for nearly all of us. I tend to stick with these guidelines on a daily basis, but the minute you are not sure check yourself out in the mirror or get some cool reference from www.fineart.sk
I hope this advice is useful for improving your characters.