Step 1: First, draw the left eye with a circle. Add a curved line inside and fill it in halfway with black.
Step 2: Next, draw the right eye with another circle. Fill it in halfway with black again.
Step 3: Draw the crab's shell with a horizontal squiggly line traveling across its eyes.
Step 4: Next, draw the left antennae with a squiggly line reaching downward from the left eye.
Step 5: Draw the right antennae with a squiggly line reaching downward from the inside of the right eye.
Step 6: Draw the left part of the mouth with a curved triangle. Add a semi-circle to the end.
Step 7: Draw the right mouth part with another curved triangle. Add a semi-circle to the end and curved, diagonal lines for detail.
Step 8: Your crab is now done! Color it with gray or blue.
How to Draw a Crab Head – Step-by-Step Tutorial