We are back to brown leaves - but there are many subtle colour variations

and most look green, even those there are only a couple of points where the a channel is negative!

So I took an autumn scene out of the window and lo and behold there are browns as well as greens.

So I am paying too much attention to the Hue clocks and not enough to what my eyes are telling me.

Seems I've got it all wrong - but it only took me 3 attempts to get there!

not quite the same as an English summer, with lots of negative 'a's!

Here is the saturation  mapping (lots of jpg compression again)

Wow this is really different from the last painting

This Bilbauld is a lighter painting than the Allegrain, so it should be more saturated, if Dan's theory is correct.  But I guess this is not a great master piece.