Autumn Maple Colours

I can see this maple tree from my window everyday.  I was fascinated by the spectrum of colours it displayed over the last two months. It seems to change colour every couple of days.  This reminds me of how quickly time passes, and time waits for no one, not even trees!  And of course, by the time I finished this drawing all the leaves have fallen.

maple_autumn

Pictured below are close ups of some of the leaves I used in the drawing above:

leaves_red

leaves_green

leaves_yellow