For the first image all I had to do was click and release on the points making the image of the tree. For the images with curves I had to press and hold shift and drag it to the next point. On the images with the curves corner points I had to release and click on the anchor point and move it to the next point. The other images required for me to hold the alt button. I then had to drag it to the next point to be able to make a point. These documents helped me learn a lot about the pen tool.