The traditional anime head is drawn slightly oval or egg-shaped, with the forehead being slightly larger than the face itself. The forehead usually takes up a third to half of the head and will be covered by the hair later. For anime villains, the forehead is usually larger than normal compared to the rest of the head, since the facial features are smaller and have less detail. The "good guys," meanwhile, will have faces nearly as wide and as long as the forehead to accompany their features, like much larger eyes. Chibi characters--the short, young, cute characters--will have heads and faces that are much more rounded than the others, giving them a stockier appearance with their much shorter stature.
The eyes go a long way into determining the personality of the character. For cute, charming anime characters, the eyes are not only large but elongated from top to bottom, with the irises and pupils drawn the same way. These irises and pupils are usually so long that both their top and bottom edges are covered by the eyelids. For sexy, alluring characters, the eyes start as being drawn more rounded, including large round irises, but then add long, thick eyelashes to make the eyes appear slightly wider. The eyes of villains are drawn thin with sharp, straight lines for the lids and lashes; the pupils and irises are often small, like bullet points. For these characters, the eyelids and eyebrows are drawn at angles that point toward the bridge of the nose.
Charming and alluring good guy characters of anime often have small noses, often to the point that they are barely noticeable and draw no attention away from the eyes and mouth. The cute "shouju" characters often have small mouths that, when open, are almost triangle-shaped with the bottom lip pointing downward. Alluring "bishoujo" characters have mouths that are noticeably longer; on women, they will be accentuated with full lips. Villains will often have larger, more pronounced noses. Their mouths are often drawn with thin, straight lines that will vary depending on the character's mood. They can be small and pointing downward when frowning to longer when smiling. Often, a smiling villain will have the mouth turned toward one side of the face, drawn almost parallel to the lines of the eyelids on that side.