Step 1. How to draw a Tortoise.
Draw a straight line

Step 2. How to draw a Tortoise.
Draw a tomb shape structure above the line joining its both end

Step 3. How to draw a Tortoise.
Draw a smooth curve below the horizontal line facing outwards

Step 4. How to draw a Tortoise.
Make another curve at a parallel distance to the previous curve

Step 5. How to draw a Tortoise.
Draw a curve touching one end of the second curved line and stretching a bit longer than it for the neck

Step 6. How to draw a Tortoise.
Draw an irregular circle for the face of tortoise

Step 7. How to draw a Tortoise.
Draw two broad parallel bars for the leg below the main body

Step 8. How to draw a Tortoise.
Make rectangular shape figure on the upper portion for the hand shell of a tortoise

Step 9. How to draw a Tortoise.
Draw a small oval for the eyes and a thin curve line for the mouth. Outline the complete figure.

Step 10. How to draw a Tortoise.
Erase the guidelines to get a clear picture of the tortoise.

Step All together.