For placing the eyes as suggested in several other tutorials you can find here on Anime Outline you can draw a horizontal line through the middle of the head and draw the eyes below that. The mouth is usually open. Brace yourself for an instant "Nope! Note that this does not necessary have to be love for a person.
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The mouth can either be pressed shut or opened with the teeth showing. It should arrive within the next 2 weeks. When our muscles express anger, the medial ends of the eyebrows are pulled down and drawn together.
These are general measurements; modifications will need to be made. For a smug chibi expression draw the eyes looking slightly to the side as half ovals with thick lines at the top to indicate the eyelids. All animals are labeled. Master the technical and structural elements behind a perfectly-drawn portrait.