Introduction: How to Draw: Bottle
Draw the basic horizon line. Then the basic shape of the bottle. ( sorry lined paper was all I had )
Step 1: Filling
Fill in the bottle and add small details
Step 2:
Make the horizon line follow the shape of the bottle.
Step 3: Shade
Add shading
Step 4:
Clean it up and add more details.. And that is how you draw a bottle.

