The eighth chapter of the Linear Perspective Master Course on NMA by Erik Olson.
Diagram 70: Multiple Elliptical Objects Drawn Out Together
Diagram 71: A Train and A Rocket Drawn with Multiple Ellipses
Diagram 72: A Spiral Staircase Planned, Set Up, and Drawn Out
Diagram 72: A Spiral Staircase Planned, Set Up, and Drawn Out Notes
Diagram 73: Looking Down, To the Left in 2 Point Perspective
Diagram 74: A Measured View Looking Up in 2 Point Perspective
Diagram 75: Using the SP to Set Up and Draw Triangles
Diagram 75a: Digitally Drawing Over an Inconsistent Jan Steed Painting