Draw a small rectangle or oval for the base
Sketch a tall vertical tower rising from the base
Add a slightly wider bottom and narrower top for the tower shape
Draw horizontal bands around the tower
Add a small room or lantern chamber at the top
Draw a dome or roof on top of the lantern chamber
Add windows on the tower and lantern room
Draw a balcony or railing around the top
Sketch a door near the bottom of the tower
Add a few rocks or ground lines around the base
Draw water and waves around the lighthouse
Add a sun, moon, or clouds in the sky if desired
Outline the drawing with darker lines
Erase extra sketch lines
Color the lighthouse and background