test.xml

<xml xmlns="http://www.w3.org/1999/xhtml">
  <block type="minecraft_turtle_pen_block" x="37" y="13">
    <field name="BLOCK">41</field>
    <next>
      <block type="minecraft_turtle_pen_width">
        <value name="WIDTH">
          <block type="math_number">
            <field name="NUM">2</field>
          </block>
        </value>
        <next>
          <block type="controls_repeat_ext">
            <value name="TIMES">
              <block type="math_number">
                <field name="NUM">30</field>
              </block>
            </value>
            <statement name="DO">
              <block type="minecraft_turtle_yaw">
                <field name="DIRECTION">-1</field>
                <value name="ANGLE">
                  <block type="math_number">
                    <field name="NUM">10</field>
                  </block>
                </value>
                <next>
                  <block type="minecraft_turtle_go">
                    <value name="DISTANCE">
                      <block type="math_number">
                        <field name="NUM">10</field>
                      </block>
                    </value>
                    <next>
                      <block type="minecraft_turtle_pitch">
                        <field name="DIRECTION">1</field>
                        <value name="ANGLE">
                          <block type="math_number">
                            <field name="NUM">5</field>
                          </block>
                        </value>
                      </block>
                    </next>
                  </block>
                </next>
              </block>
            </statement>
          </block>
        </next>
      </block>
    </next>
  </block>
</xml>