Answer:
For question 2, yes it does look correctly proportioned.
For question 1, I am not completely sure on, but it does look like it could be representing strength/power.
The three types are face masks, helmet masks, and body and belly masks. Face masks are commonly used today as products used to make the face more healthy. Helmet masks are fit over the head and are often carved from a tree trunk. Body and belly masks were made to cover the upper half of your body.
Since you have provided no options, the best I can do is to describe lithography and hope that it helps:
In the first step, an image is drawn on a stone, typically with wax or oil. Then ink is spread on the whole stone, but it will not stay on the parts with oil or wax, only on the other parts. Then paper is pressed against the stone, and an image appears, because the ink adheres to the paper- you can then make multiple copies of the image.
