The end of eye position: finger decided, eye end, this position is not easy to make a mistake.
Depict the middle segment of the eye: first draw the middle section of the eye, about the position above the eye.
Draw a line of "eye - tail - eye": as close as possible to the root of the eyelashes as close as possible.
Draw a line of "eye to eye": back in reverse, and remember the root of the eyelash.
Strengthen the upper end of the eye: add a bit to the end of the eye, and raise the angle.