A new video is up, that explains how Portrait wizard works,
and it takes you through the process of creating portraits.
The length is a good 20 minutes, and it explains most of the features of the software, and a little of what is planned for the near future.
Of course the video will be a bit outdated in a few days, since I add stuff and update pretty often, but it gives a good idea of what to expect, and it shows you how you interact with the software, to create your own unique custom character portraits.