STEP 1
In order to draw perfect cat eyeliner, keep the pink line in your mind that starts from outer part of nose and ends at the tip of eyebrow which is shown in the picture.
Alternatively, you can imagine a line by considering the natural curve of your lower lash line. This line guides you to execute the wing of the eyeliner.
STEP 2
With the help of small angled brush pick some matte black eye shadow and draw a light line from the outer corner of your lash line and extend it towards the tip of your eyebrow for more dramatic look. Make sure to put less pressure as you are moving near to the tip.
Now create another line from your upper lash line which joins the faded end of the first line. You can create the thickness of your wing as per your own taste so it is suggested to first draw that second line close to the first line and then extend the thickness.