Step one:
First draw a horizontal line and two half ovals on it.
Step 2:
Then draw a short line across it, and then draw an arc to form the door of the igloo.
Step 3:
Then draw a large semicircle as the shape of the house.
Step 4:
First draw a few horizontal arcs inside.
Step 5:
Draw vertical short lines between the horizontal lines, paying attention to the staggered intervals.
Step 6:
You can also draw some dots around it, like snow.
Step 7:
Finally, apply a nice color and the igloo is ready.