Progression of a drawing

I thought it would be an interesting idea to show you how I work a drawing. First I start with a pencil line sketch.

Then I start adding in some color with my colored pencils.

....then more color..............................

....adding still more color........

I am trying to keep a mostly gray background and by making the foreground pop with color, create alot of depth. The colors of summer to me are the many hues of greens and reds. What do you think?

I will post the finished drawing tomorrow....please come back and look!