the very first step is to apply black lines along the bite surface to act as the bite marks. This will be the basis that you will be working off of.
Step 2: Step Two- wax
The next step is to add the scar wax so the paint looks a little bit faded and not as fresh. It will also help the fake blood to sit still and not run as much later on.
Step 3: Step Three- blood!
The next step is to add blood to the point of the contact. You should add to the part where the purple paint is, so it looks like a purple, bleeding bruise. After this you can add as much blood as you want like I did in the very first picture.