Assignment:
Block in your Dark, Mid and Light colors. The notanized image flattens and simplifies the light and shade which is helpful to get you started, so have it handy when you start blocking in. Once the blockin is done then you can go in and add the variations of color and work with edges to make the form 3d.
Give your self enough time to finish this off, approx 3-4hrs would be a good guide to aim for.

Demo Painting
11x14 - Oil on Panel

Demo Palette