I did a line drawing of the shed in my back garden using black ball point pen, from an exterior corner view.
I found this easier than the previous exercise in terms of the general shape, but had some difficulty in working out the spacing between the features such as doors, windows and wooden slats, but perspective theory cant help so much with that so its really about trial and error I suppose.
When I finished I drew my eye level line on the page in blue ball point pen and found (as suggested in the course material) that none of the structural lines met the line as the angle was too wide and vanishing points were therefore off the page. I’m not sure then how the theory helps for these kind of drawings, as I am left relying on my eyes to judge.
Below is my drawing.
Deborah McAulay 