Little bit for you:
Ok, here is the hands and the tutorial before the membranes:
1) I mash a piece of fresh putty on the hand and make sure you leave enough to sculpt the wrists. You need to push the wrist in also, huge importance.
4) see this pic, as the hands are still wet roll out thin sausages and apply them to the fresh hand, has to be fresh. Dry and these will pop off, it's very delicate work and they must be fixed well.
5) now bend them into position how you like. I use my finger to push the tip and put my tool under it to get a sharp bend. You might need to do this multiple times as it drys.
2) roll another sausage but this time even no taper to it.
3) cut in half evenly. These will be used to create you knuckles.
6) attach some tubes for the wrists and knuckles close to hands. These need to be done while fresh also and will give strength for the rest.
7) blend them in, not much to say here you will have your own style.
8) let this part dry and then repeat the same steps for the rest of the knuckles. They will be much stronger now and easier than the first set as it is all bonded together.
Hope this helps you all.