Step 1: First draw the snake’s head. Leave a small space at the back of the head. Don’t forget to add the tongue.
Step 2: Next draw the snake’s eye. Start by drawing a crescent shape inside a circle. Then add a curved line to the top of the circle.
Step 3: After that draw the nose with just a small circle towards the left of the head.
Step 4: Then draw the body of the snake. Start at the head of the snake. Make sure when you draw the body to keep the in mind which line is which two make sure it looks 3D.
How to Draw a Cartoon Rattlesnake – Step-by-Step Tutorial