Final answer:
A full face or another feature in a picture refers to a frontal portrait, which can be either a full-length or bust-length representation of a person. In art, full-length portrays the entire figure, while in terms of mirrors, full-length refers to a reflection of the whole body.
Step-by-step explanation:
A picture that includes the full face or another feature is typically referred to as a frontal portrait. In art, a frontal depiction of a person often shows both eyes, the width of the shoulders, and may include details down to the knees, as opposed to a profile view which shows the side of the figure.
An example of a frontal portrait is the Lansdowne Portrait of George Washington, which is a full-length likeness, meaning it represents the entire figure of the person.
Similarly, in the context of mirrors, a full-length mirror is one in which you can see your entire body. The size of the mirror is independent of your height or the distance you stand from it, as noted in figures describing mirrors. Full-length mirrors are designed to give a complete reflection, from head to toe, which aligns with the concept of full-length portraits in art that encompass the whole figure.