This is a simple demonstration of how to use the new 'mask' plugin in Pixenate.
Select an area of the photo. You will see an oval outline appear within the selected area.
When you're happy that the oval outline is aligned with the area you want to crop, click 'Crop Head'.
Now you can move the head to a different part of the photo or even resize the head. When you are happy with the position and size, click the 'Place Here' button.