I got off to a quick start with this drawing. I managed to get the block-in completed quickly, although I struggled somewhat with the length of the legs and the proportions of the head. Having got those aspects sorted out I laid in a general shadow tone, very lightly at first. After keying the darkest dark (the area in the hair around the nape of the neck) I then darkened all of the shadow area starting from that point and working 'south'.
The most difficult areas of this drawing were the abdomen and the area around the shoulders and sternum. I found it rather tricky to get the right level of anatomical information without overstating things and breaking the unity of effect.
Overall, I'm very pleased with the drawing, which has a nice sense of gesture and form. The two areas which I feel let the drawing down slightly are the hands and feet. I left these areas until the last day but ran out of time to bring them to a complete resolution.
Aspiring artist, training in the classical tradition.