Lucy’s skeleton displays many clues about the position and development of her musculature in life. These can be “read” using the anatomy of modern apes and humans as guides for their interpretation.
Following the muscle markings on Lucy’s bones, I gave her arms that are well muscled—not bulky like a bodybuilder’s arms, but more like those of a very athletic dancer. When fleshed out, her arms have a somewhat human look, but with proportionally longer forearms and some apelike nuances in the arrangement of muscles.
The look of her legs is also somewhat human, but her leg muscles are packed onto leg bones that are relatively shorter than ours, and with a stronger (hyperhuman!) angle at the knee.