FIGUREHEAD, STORK LINE, OBLIQUE LINE

A figurehead is any of a number of "up" positions, with high and forward poise, usually assumed by the woman and more or less resembling the wooden female figureheads of ships of old.
Here, we have a stork line, which is a figurehead in which one leg is raised to the supporting knee, toes pointing down. I suppose it is a styalized representation of a resting stork.
An Oblique Line has a Stork Line–quality in its raised foot, but the Oblique Line stretches the oblique abdominal muscles and so produces a graceful curve to the whole body. Here, the cue might have been "woman Oblique Line, man Split."
In the figurehead, the woman's feet may be together, or she may lunge or extend one leg, yielding a variety of styles.
Photos © A. Curths; E.Allen; F. Lepretre; J. Lee; P. Suba; V. Kanonikov; from Dancesport UK photo gallery.