Interesting use of color to frame the hammer.
Use of tone to communicate the surfaces of the drill handle.
Nice use of white pencil to add highlights but I think the dark outline blends too much into the cast shadow and background.
Quick motion study with simple lines and shapes.
I like how the color was added quickly and evenly over the whole watch and then the form was delineated with shadows and highlights.
I also like the hammer, very nice line shadows. The tone on the drills and focus on just the body is very powerful. The third one down, a handle or something is too muddy and they used the white pencil to try and save it. I also like the quick tone added for teh watch, effective and fast.