How To Draw Anime Mouth With Fangs. Start by drawing a partial rectangle in one corner of the mouth. When shading or coloring the inside of the mouth should be the darkest with the tongue slightly lighter and the teeth the lightest usually just white.
Here are some examples of how you can use the same general construction to draw lips with varying shapes and proportions. In this view the teeth become a lot more difficult to draw. Then fill in the details usually just tongue and or teeth.
The mouth is quite flexible.
However it is possible to have characters with full even pouty lips. Traditionally anime manga characters are portrayed as lipless. There are way too many incisors and there wouldn t be much space left. If you think about it this character couldn t close their mouth because there is no space for the big canines to fit.