Step 2. Wind Direction
Draw some light guidelines (or a thumbnail in the corner of your drawing) to define the hair’s direction and flow; the hair will flow in the same direction as the wind, so if you want the wind to blow from left to right, the direction lines will follow suit.
Step 3. Strands
Start adding strands of hair that follow the direction lines from the previous step, making sure to draw the large forms from thick at the base to thin at the ends. Pay attention to the overall design of the hair, such as where the strands are longer and shorter, how the strands are attaching to the head in a natural way, and so on.
Step 4. Render
Remove any guidelines and refine the linework until you are happy with the drawing!. Make sure to practice a lot because this doesn’t come easy.
Why is drawing hair so hard?
Hair is difficult to draw because what we see differs from what we know; you can’t just draw all the hairs as lines because that’s not what we see when we look at hair; instead, what we see must be simplified to lines and shades, which can be done in a variety of ways.