https://visualeducation.com/class/how-to-use-liquify-in-photoshop/

 

Photoshop’s Liquify filter enables you to manipulate your images with incredible freedom and precision. In this class, Karl shows you how to use it.  As Karl demonstrates Liquify’s capabilities by using it on one of his own portrait images, you’ll learn how to get the best out of this powerful filter.  Discover how to use all of Liquify’s various tools, including Forward Warp, Freeze and Thaw Mask, Reconstruct, Pucker, Mesh, and more.  Karl’s demonstration of Face-Aware Liquify will help you make the most of this advanced functionality, ensuring you can retouch your shots like a pro.