Node of whirl with (only) 4 child ellipses, range 90 to 180 degrees.
Over 180 degrees, they expand beyond parent ellipse0.
Tilt angle should be Modulus 180.

I'm not happy with behavior of Quartz.

I might try a script.

The axis RATIO is the same for all child ellipses. Just apply it to the widths and heights of the parent of the child.
Widths and heights get swapped every generation.
Ellipse[i] is the parent of child[i+1]
Ellipse[0] could also rotate, as the child of ellipse[-1]
Ellipse[i,j] could use j as the scaling index...
The step angles of a scaling ellipse for child 2 is twice that of child 1.
The step angles of scaling child ellipse 3, is 3 times that of child 1.

- Brian