Female anatomy reference for artists: ribcage vs pelvis, iliac crest and trochanter landmarks, contrapposto rhythm, and the errors that flatten a figure.
You draw a female figure. The proportions measure out fine, the pose is the one you referenced — and it still looks like a mannequin. That failure is almost never a muscle problem. It is a structure problem: the ribcage and the pelvis are not being drawn as two solid, tilted boxes with a flexible span between them, so everything hung off them ends up soft and boneless.
This is the counterpart to our male anatomy reference guide , which covers mass, builds, and reading muscle under load. This one stays on the female figure: which bones surface, how the torso rhythm works, and the mistakes that keep recurring.
The torso is not one tube. It is two rigid masses — the ribcage (an egg, flattened front to back, tapering toward the top) and the pelvis (a shorter, wider bucket) — joined by the lumbar spine, the only part that bends. Draw both as simple solids, each with its own tilt and turn, before you draw a single contour.
On the female figure the ribcage tends to read as shorter and narrower relative to the pelvis than on the male figure, so the gap between the bottom of the ribs and the top of the hips is usually more visible. That gap is the waist — not a decorative pinch applied to a silhouette, but the visible span of lumbar spine between two bones. Draw it that way and it stops migrating up and down between drawings.
You do not need to memorise a skeleton. You need the handful of points that surface through soft tissue on almost every body and every pose, because those are what keep the drawing honest:
The clavicles — the clearest structure on the upper body, running from the pit of the neck out to the shoulders in a shallow S and swinging when the arms move. Drawn as a straight bar, they kill the shoulders.
The pit of the neck and the sternum — the centre line of the ribcage starts here, and it keeps the ribcage turn readable even under clothing.
The bottom edge of the ribcage — the thoracic arch, visible as a soft V or a shadow, particularly with the arms raised.
The iliac crest and the ASIS — the top rim of the pelvis and its two front points, reading as dimples, creases, or a change of plane low on the abdomen. They tell you exactly how the pelvis is tilted.
The greater trochanter — the knob at the top of the femur, sitting well below and outside the pelvis rim, and the most misunderstood landmark on the female figure.
Knees and ankles — the inner ankle bone sits higher than the outer one, on everybody.
Published 2026-07-21 on the Refimages blog.