The medial malleolus (inner ankle bone) is higher and more anterior than the lateral malleolus (outer ankle bone). Beginners make them level. Walk around your model: the inside ankle sits above the outside ankle.

The "eight-heads-tall" rule is a starting point, but understanding bony landmarks—like the collarbone, hips, and knees—is crucial for proper character proportion.

Muscles alone make characters look like flayed medical models. Real human figures possess subcutaneous fat pads that soften transitions between muscle groups.

Once the skeletal framework is established, muscles define the dynamic silhouette and contour changes of a character. 3D artists must think beyond static reference images and comprehend how muscles stretch, compress, and interlock.