Here’s a tip hot drawing ellipses in perspective.
Since an ellipse is really a circle in a square where the edge of the circle is tangent to the mid points of the square you can draw a square in perspective and then draw the ellipse. But the major axis of the ellipse is shifted away from the vanishing point. And the edge of the apex of the major axis will not touch the edge of the rectangle that is drawn in perspective.
See the drawing below.
If I am missing anything on this please comment.