perspective: trees -- I imagine doing something like this but with blowing paint around with straws. start with the lightest grey in the back and work towards the front -- could be a very stunning project for fundraising.
leaf shapes in the Montessori class room came via Elizabeth Caspari, Maria's friend and personal secretary. Madame Caspari's father was a botanist and she was homeschooled due to a childhood foot surgery that went poorly, though she walked later.
Monochromatic Tree Painting Beginning painiting students created a monochromatic painting of a winter pecan tree grove. Students chose an intermediate color and made tints and shades of that color to complete the painting.