Glad to help... very stylish looking doll.
Do you have any sections on your site that might explain how a doll of this style is constructed?
As for basic construction, the first link in my previous answer goes to information about that sort of thing (>Types of Figures >>Jointed
...also check the Dolls
section under Jointed for larger "dolls" though they often use the same simple jointing techniques as the small and tiny ones).
(There's other info and pages re faces, "clothing", hair of different kinds, sculpting in general, etc, at my site.).
There are various ways to joint a figure though, and various materials that can be used. Some ways are "simple" like these, and some are quite complex.
In this case, the upper arms are connected to the torso with a "knot" technique (although the cording in this case may be ribbon).
A similar kind of thing can be done with wire/etc but instead of having the "knot" in a cord function as the "stop" outside the arm to hold it on, a bead may be added to act as the stop or the wire may be shaped (knot, spiral, etc) so that it can't fit back through the hole.
(some of these use that technique too: http://www.etsy.com/shop/spookbot/sold
The cording could also just be tied through a hole in the arm or other connecting part:http://www.strangedolls.net/dollprofiles/lucy04.html
Also in this particular case, the cording/ribbon was probably fed all the way through a pre-made hole in the upper torso extending out from each side, but other connectors/methods may just use small (long) holes or slits to insert various connectors (rather than being inserted all the way through the part).
Often two eye pins are used as connectors for each joint, one inserted into each of the parts to be joined (then the eye pins are simply connected together).
There are all kinds
of variations though.
I can't see the "holes" or shapes of the figures' other joints well enough to say which techniques/materials were used. It could be that there are two eye pins that have been connected together (one in each segment) at each jointed area, and that the eye pins are somewhat hidden by having a large bow tied over or in-and-around them; or it could be that ribbon was actually used in each end of the two segments and the ribbon ends were tied in a knot then in a bow, for example, or other ways.