b. This helped me because it allowed me to determined how I would draw the shape.
c. I would have tried to draw the whole room and not just one wall. I would have had added more color & more detail.
d. Do not, I mean do not worry about eraser marks. There are going to be plenty of them for you trying to make things perfect.
e. The link that Mrs. Hull posted on how to do a basic one point perspective room because it gave me a idea of what the layout should be.