Many beginner sculptors forget abort correct proportions, rules of anatomy and composition when creating models. Artists often concentrate on details too much but forget that pose and proportions they chose are against the anatomy.The basic rule is to keep a correct proportion amongst height of model’s head and whole model’s altitude.
An average human’s altitude is equal to 7 or 7,5x his head’s height., but in case of models sculpted in small scale this can change to 5x or even less.Such thing is caused be sculptor’s comfort: if You’d like to keep the correct proportions while sculpting 28mm scale model it’s head should be 3,5 - 4 mm high. Another often overridden problem in sculpting miniatures is composition and balance of the pose. Very often sculpts are not dynamic or are composed without knowledge of anatomy and muscles + skeleton construction. The basic rule of correct posing is the rule of contrapost. Contrapost is a term most commonly used in the visual arts to describe a human figure standing so that its shoulders and arms twist off-axis from the hips and legs. This gives the figure a more relaxed and less stiff appearance. It can also encompass the tension as a figure changes from resting on a given leg to walking or running upon it.
If You have a problem with mastering contrapost try to watch own body in the mirror. It’s the easiest way to avoid anatomic mistakes in sculpting.