When looking at portraits, we have a tendency to look at the eyes first. We can't help it, it's part of human nature. This is why I personally believe it is extremely important to capture and refine the eyes in your photos to create more engaging portraits. Retoucher Michael Woloszynowicz created an awesome 4 part video series about how to make your eyes look amazing in post production. See the rest of the post below to watch video parts 2 through 4.
While the first video above focused on how to sharpen eyes, the videos below share how to brighten eyes, resize and move eyes, remove hair, veins, and redness effectively. I learned a lot from these videos, personally, and hope you do too!
You can subscribe/watch more of Michael's videos on his youtube page: http://www.youtube.com/user/vibrantshot