If you
look at the model you can see which geometrics you need to use as a
base: a taller or shorter rectangle, a triangle, a circle, etc.
In our
case, you can see that for our bottle the most appropriate shape is a
rectangle.
Start
with the upper side of the bottle. Carry out the same process as we
have done with the jar, mark the width of the bottle's opening and
start drawing from the top down.
Draw
the neck of the bottle and then start drawing the rest. Draw the sides
with some curves, until you get to the sides of the rectangle.