I'm always looking forward to this exercise, it really shows whether one understands perspective. And I mean the really important aspects, not the mathematical jargon of 1PP, 2PP and 3PP.
First issue: what is a vanishing line, and more important, what is NOT a vanishing line? a and b are not
On your sketch, object 2 does not resemble a box at all. And it does not resemble the object in the photo either. That shows that you invented some perspective first, then forced your objects into it. That is not the good way, particularly for a landscape painter. Draw first
, and if there are horizontal parallel lines that run backwards, check
for the correct perspective.
Your sketch, annotated:
The basic principles:
Illustrated by an elementary example - a double railroad track - it is almost ridiculous that it should be explained.
1. Further away looks smaller.
2. All VP's of horizontal
lines lie on the same and only horizon line aka Eye Level.
3. All lines in a group
of parallel lines converge to the same VP.
On your sketch:
note 1: two horizon lines
. How would that look in a landscape ?
note 3: further away looks smaller; remedy: check all
groups of parallel lines for their VP, so in this case also to the right.
The other boxes are almost parallel with the plane of the paper, so their front edges do not converge enough to merit the control by vanishing lines.
I'm perhaps rather severe, but as a landscape painter, you must be able to avoid errors like the back being larger than the front.
So, sorry, but try again. And draw first, then check
. That is a general principle: draw first, then measure. Unlike the tailor or carpenter: "Measure twice, cut once