Hello there! There are several mistakes here, but the main issue is that most of the cylinders aren't converging properly toward their vanishing points. Remember that when drawing in perspective, parallel lines should converge toward vanishing points on the horizon line. This is the opposite of what's happening with some of your cylinders, where the parallel lines remain completely straight or converge in a different direction instead of toward the horizon line. Take a look at the corrections I made to the two cylinders at the bottom, where the parallel lines, as well as the minor axis, converge toward their vanishing point on the horizon line. Now, regarding the vertical cylinders, the main thing to keep in mind is that the width of the ellipse will vary depending on how close or far it is from the horizon line. If the cylinder's ellipse is close to the horizon line, it will appear narrower, and vice versa: the farther it is from the horizon line, the rounder it will appear. Hope this helps! | Artwod Feedback