This thirteen page PDF Document is a step by step guide to easily creating Cartoon Caricature Faces from photos using the free, open source drawing app, Krita.
Don't be rushed by a fast moving video tutorial. Follow along at your own pace. You don't even need to know how to use Krita (beyond opening and saving a document) to follow along.
The stylised faces you create can be used in illustrations, animations, on merch or other promotional material, anywhere you can think of.
Don't be put off by the number of pages. This document is mostly large size, labelled, screen shots clearly showing each step that, once learned, will give you the skill to create this type of stylized cartoon caricature face from a photo in less than fifteen minutes (less than five if you hurry!).