The error occurs in the way the eyeshadow is applied, notably when the color extends from the outer corners of the eyes to the crease.

Here’s an image to help you understand:

It is evident from the image above that the eyeshadow application just draws attention to the hooded eyelid and the sagging outer corners of the eyes.

Although these kinds of tints are designed to hide these kinds of flaws, eyeshadow should never be put below the lower eyelid line if you have hooded eyelids. The lower eyelid’s line should extend uninterrupted toward the outer corner.

In order to do this, you ought to:

Steer clear of drawing harsh lines in the eye’s outer corners.
Avoid drawing lines in the corners of your eyes that are too black.
After all, everyone has facial expressions; you don’t just stroll about expressionless all day. Smiling distorts the sharp, black lines in the outer corners of your eyes, making them appear unsightly.

I’ll now present a comparison of how the eyes may appear to suffer if this eyeshadow application error is done, highlighting all the incorrect elements.

And this is the exact way it ought to appear.