Both the Front and the Back of the Skirt Block (made on this website) have two darts in the half-block. The darts in the Skirt Front are shorter than the Skirt Back. In the Bodice Back, one dart is longer than the other.
This bodice is actually a 3-D version of the flat Bodice Block Back that is used on this website.
The style that is created by the Block is called Style A; other styles that are created by moving the waist darts are shown in Styles 01-03.
Flat Block vs Technical Flat
Figure 1: On the left are the Skirt Blocks (Front & Back), with the darts open . On the right are the Technical Flats of that block; a 3D representation with the darts closed. The blocks are always shown as half the body, as the basic pattern is symmetrical.