1. Start by drawing a circle for the head.
2. Add two smaller circles for the eyes and a small triangle for the nose.
3. Draw a curved line for the mouth and add two small lines for the eyebrows.
4. Add two large circles for the ears.
Step 2: Draw the body
1. Draw a rectangle for the torso.
2. Add two arms and two legs.
3. Draw a shell on the back of the turtle.
Step 3: Add details
1. Add a bandanna around the turtle's head.
2. Add some weapons, such as a sword or nunchakus.
3. Draw some accessories, such as a mask or a backpack.
Step 4: Color your turtle
1. Choose a color for your turtle's skin.
2. Color the turtle's shell a different color.
3. Color the turtle's bandanna and accessories.
Step 5: Enjoy your teenage ninja turtle!