How to warp one face into different shaped faces

[eric.l...@gmail.com]

Looking for a way to take one face photo, and then warp it into one of the many different types of face shapes.  By this I mean there are round faces, oval faces, square faces, etc.  In photoshop there is a liquefy forward warp tool that I think could be used for this.  What can I use in Winmorph to consistently change various faces in the same fashion?  My goal here is to get a few pictures of people, and then make similar changes to their faces so that I end up with a few variations of face shape of each person.  I am then going to ask people to view the pictures and ask them which people they think resemble a certain characteristic, such as honesty, etc.  By having one person warped into different shaped faces, I should be able to do a rough estimate on if there are certain face types people associate with certain traits.  I really need to be able to make the same sort of warps to each face so that it is a fair comparison, meaning each person needs to have the same features warped to make them a round face vs square face and it needs to be repeatable.  I kind of thought there may be some sort of line I could draw that connects outer part of eyes, hairline to chin, cheek to cheek, and then warp the image in these line views to get the different shapes I need.