Relation between picture plane and observer in perspective?

Question

I have some notions of geometry and I am currently trying get a full grasp of some features of perspective. I am having a hard time understanding the relation between the observer and picture plane since I am having troubles making the distance between them reflect in the drawing. I have done [these](https://imgur.com/a/W1JHsgM) drawings of the same model just moving the observer closer to the picture plane. I am using the picture plane to define the real measures. When I look at both at same time I know that something is off but can't really tell what. Can someone here explain what I am doing wrong and help me understand this relation? Thanks a lot!

Answer 1

Perspective is definitely challenging!  The first issue is that Perspective in Drawing is not Geometry.   In addition, the relationship between the observer and the picture plan is not based on where the observer is located as in closer or further from the picture plane. 

 

Perspective is first and foremost a set of artistic conventions that have been used by artists through the ages to trick the eye into seeing 2D drawings and paintings as if they are real world 3D.   This is quite a different exercise than the one you are working on in these drawings.  Artist have come up with a wide variety of techniques to simulate the “closeness” and “distance” that the human eye perceives.  

As a drawing and painting tutor it is part of my practice to help students understand how to create perspective in their artworks.

Answer 2

Hello, a great question, In planning your picture you should consider the basics of perspective. First where is "eye level".Then - Do you want a "worms eye" view or a "Birds eye view" ? then the horizon line and vanishing points. I can help you better understand all this with lessons. I am a Wyzant drawing and painting instructor. Please see www dot jonathan fine art dot com. Best, Jonathan