People don't understand the importance of the eye in anime. In traditional anime, the eyes are supposed to convey almost all of the emotion, and the mouth is just a supporting detail. I see people making eyes exactly the same in all their pictures, and only the mouth and eyebrows conveying the emotion. DON'T DO THAT. It seeps the life out of the picture.
Credit to: @Huntercat856 AND @PinkamaneDianePie489
