This is a basic, structured built of the female fashion figure, front, three-quarter and side view (below). Always remember you need to be aware of your center-front or back, to understand the angle of the figure.

Be aware that hips don't get (much) wider by the pose. Pay attention to floorline (feet) and forshortening of feet/shoes.

Seeing the figure as shapes is important. Comparing to verticals. Comparing proportions of body parts. Always see your center (front or back). Always be aware of weight leg. Also use negative space.

There are several ways to approach the drawing: Contour, silhouette and shape are essential (working with or without an underdarwing): ALWAYS be aware of your verticals in the room (or page edge) and compare and see the "diagonals"and movement of the figure/pose.

The female fashion face: It is important to keep basics in mind, but EDIT. Smaller noses, fuller lips, tighter chins etc.