Step 1: First, draw two very large, round eyes, placed close together.
Step 2: Just underneath the large eyes, draw a downward arching row of 4 little eyes. The inner smaller eyes are larger than the outer ones.
Step 3: Draw the head as a helmet that just encloses to tops of the very large eyes and extends below the lower set of eyes.
Step 4: The fangs extend below the head, like two hairy rabbit's feet.
Step 5: Draw the pedipalps to extend below and around the fangs, like a set of arms.
How to Draw a Tarantula Face – Step-by-Step Tutorial