Getting some perspective

Ok, it has been a while. I took a little break because I began to realize my art will always look like that of a 4-year-old unless I can do the hard work of getting some perspective. Literally. From this book, called Perspective.
Drawing is not my strong suit. It's hard. It's precise. It's a little boring, like having to stay in and do math when you want to go play outside. I am sitting here with a ruler and a protractor, measuring angles and drawing straight lines when I really want to be playing with paint. But it's good for me. I am teaching myself how to see things differently. That is never a bad thing.
So here, at right, is one of the exercises I completed, which involves measuring everything from a point in the distance called a vanishing point, which also determines where the horizon is. In this drawing, you can clearly see the vanishing point. After this exercise, a photo is shown in the book to illustrate how you can see the vanishing point in some pictures. So I attempted to draw a copy of the photo, measuring angles and finding the vanishing point. It's not beautiful. It's a little blah, but the point here is not beauty and spontaneity (although I did turn a building into the suggestion of a bridge in the distance). But this is about precision. I am not going to hang this on my wall. The point is trying to render the gradually diminishing size of things as they recede into the distance. I don't think I did too badly.