With the mannequin having legs I could finally start on the arms. Once the arms and hands are done the middle tip of the fingers should end at about mid thigh. So it helps to have the legs completed. Or roughly completed.
Creating the arms is much like creating the legs, however, first, I wanted a depression in the upper part of the torso where the shoulder joint fits. To do this I selected the edges of a face and tried to get the matching edges on the other side. I tried the transform tool to scale them in towards each other just a little. I did some individual tweaking of the location of the face as well. And a little use of the soft select tool.
For the shoulder joint, I created a sphere and then squished it a little. I didn’t want it perfectly round I wanted a bit more of an oblong with the same radius at each end, so not egg shape but not completely spherical like the rest of the joints. Once I had the joint sphere shaped I shifted it into place at the impression created for that joint.
As I said, creating the arms was much the same as creating the legs. I created the upper arm like I did the thighs and lower legs by creating a new cylinder with sections on the caps, because, as with the components of the legs, the cylinder that I had originally placed 
for the upper arm, had no sections on the ends and I wasn’t able to create the indention that I wanted for the elbow joint or the shoulder joint. Once that was created and shaped, I copied the upper arm to make the fore arm. I figured I already the indentations created so by copying the upper arm and scaling the copy so that it fit for the fore arm I could work a little smarter. I did have to scale each end a little on its own as the scale translation wasn’t exact for what I needed for the fore arm. At this point the only thing left was to add the sphere for the wrist joint. Well and the hand but I’ll get to that a little later. The wrist was nothing difficult, it was just a sphere, scaled to size.
This shot is a bit of a close up of the arm. You can see a little of the deform of the shoulder joint and that it’s not a true sphere.
Here’s another angle of the body and the arm.
In this side view you can see that I haven’t really differentiated the front to back in anything except the feet. I will need to do that since I want the back to be flat. Not yet though, that’s something for the next level of refinement.