I am only going to shew you how to draw one character but using some of my techniques you should be able to make as much as you want.
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You can change this depending on your character
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Then smooth it a bit.
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This shouldn't be straight as faces are not 2 dimensional. If you run your finger down the middle of any face it comes out at your eyebrows then goes in for your eyes and back out for the nose and your chin and lip go back in.
A tip I use is to shape it between the left and right side.
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One should be just inside the curve on the off side of the face.
The other should be near where the face turns and becomes the side of the head.
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Make them pointing a bit in the other direction then in the last step so we get them Anime sort of eyes.
The right one should be a bit further away from the center line due to perspective blah blah blah......
Also make sure the far eye is a lot shorter than the close eye.
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Most Anime noses are made from just two curved lines.
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The first top line is the middle of the lips and starts just a tiny bit left to the center line and is about a 1/4 up the face.
The second line is underneath it and should be shorter.
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The moves depending on where the character is looking.
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Then form smaller circles on the inside of them and shade in dark, this will be the pupil.
Then rub out two circles from the pupil to form reflections.
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To me eyebrows are the biggest chance off adding emotion so play around with them.