This is a drawing I was rather pleased with, and it is missing
the head because it was a demo of using gouache ("gwash" -
opaque watercolor) in washes with a pencil, to quickly sketch
the figure, and capture the contrapposto stance. (where one
side opposes the other - very popular throughout history).
This model was also very graceful, but had such a sad face
I could hardly bear to draw it - but as previously stated, that's
not why it's missing.