No matter what height, horizon line is constant, use it in your drawings always.
Do you know which image uses a telephoto lens? (No children were placed in danger to capture these photos.) Top: 55mm (standard) bottom: 300mm (telephoto). Notice how the far background leaps forward while the middle ground compresses. What happens in telephoto is teh station point remains in the same place but the vanising points move farther away from each other. Conversely, in a fish eye lens (extreme wide angle)n the VPs are pushed closer together, bending convergence creating a view that describes a great deal of space but through massive distortion.
No matter what height, horizon line is constant, use it in your drawings always. 
Do you know which image uses a telephoto lens? (No children were placed in danger to capture these photos.) Top: 55mm (standard) bottom: 300mm (telephoto). Notice how the far background leaps forward while the middle ground compresses. What happens in telephoto is teh station point remains in the same place but the vanising points move farther away from each other. Conversely, in a fish eye lens (extreme wide angle)n the VPs are pushed closer together, bending convergence creating a view that describes a great deal of space but through massive distortion.
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