Draw a small oval for the head
Add a larger oval for the body
Sketch two rounded ears on top of the head
Draw a pointed snout at the front of the head
Add two small eyes
Draw a tiny nose at the tip of the snout
Add whiskers on both sides of the snout
Draw a curved line for the mouth
Sketch four small legs under the body
Add small paws at the ends of the legs
Draw a long thin tail extending from the back
Refine the outline of the rat
Erase extra guide lines
Add fur details if desired
Shade or color the rat