Adobe Illustrator: Drawing Straight Lines with the Pen Tool

I practiced with the Pen tool do different shapes. I then added color and patterns to the shapes.

I turn the Gird on and used the Pen tool with no fill and black stroke to draw the paper airplane. I then added a gradient .

I turn the Gird on and used the Pen tool to draw the

paper crane. I then added a gradient. When done I added a drop shadow with blur.