Facial Mark
Facial marks are arguably the most distinctive means of establishing the identity of an anime character. You'll find that they often symbolize a concealed power, a tribal heritage, or an event from the character's history that gives the character design an air of significance and gravitas. It is the dramatic juxtaposition of the marks, whether they're made from ink or scar tissue, with the character's features that makes the setup appealing to fans.
The visual style is characterized by heavily detailed close-up shots with crisp lines and high-contrast lighting. The character artists focus on the texture, such as the neon glows on magical sigils or the deep crimson hues on traditional warrior marks. To be honest, the crisp focus on the details makes for an amazing high-res phone lock screen.