Please Assist With Perspective Change Track

I am new to Mocha AE and having some trouble tracking a shot of my actor who changing the perspective of their head. What I am going to do is use the tracking information to stick things to her face. I have tried the pixel track tools in AE and they are working MUCH better than Mocha, which definitely means that I am doing something wrong :confused:

If anyone could provide any assistance with the workflow that I should follow that would be most helpful. I have provided the still images in this thread.

Thanks!

Elli