Beginning Watercolor Homework, 5/19/16 Layers, Step By Step

To extend our classwork into the realm of understanding a painting subject as a series of layers, I'd like everyone to make a demonstration piece comprising three separate sheets of paper. One will show only what the first layer looks like (the pale under-painting of the major shapes). Then another that shows the first and second (lights plus middle values), and, finally, one that shows three layers (light, middle and dark).
The process breaks down like this:

Start by identifying the major shapes in the image. There should be no more that 10 or 12.
Make a simple drawing that locates the shapes.
Paint in the first layer - the lights - of each shape, keeping the treatment as simple as possible (no texture or detail).
Now make two more first layer pages, so that you have 3 more or less identical sheets.
Put the second layer - middle value - on top of the first layer on two of your 3 sheets.
Finally, apply the 3rd layer - the darks - on top of one of the second layers.

When the process is finished, you should have one sheet that just has the first layer, one that has first and second layers, and one that has three layers. Please bring all three, plus the photo in to class.

In case you missed class, here are a couple of simple images that will resolve nicely into three layers. If you think there should be a fourth layer of super darks, put them on top of the three layer treatment.

Please read all that again. It's a little confusing, I'm afraid.