Draw a small oval for the head
Add a rounded snout at the front
Sketch the hood shape around the head
Draw the neck widening into the hood
Add the body as a long curved line
Extend the body into a coiled or S-shaped form
Draw the tail tapering to a point
Add two eyes on the head
Draw the mouth line
Add nostrils if desired
Sketch scale patterns along the body
Refine the hood edges
Darken the outline
Erase extra sketch lines
Add shading for depth