The lines on the joint are a bump map. You would have to be crazy to model all that detail in. Like I said, I took about a minute to paint a map for it. Then I just copied and pasted each finger in so you may notice they're all the same. I just wanted to make it more interesting then the bare model. I'll paint a more detailed map when I have time. I'll post an update when i finish it.
-the thumb looks two pinched below the knuckle
-too flat onthe back of the hand... i would continue the bones from the finers to the wrist a lot further
-fingernails... eh, maybe too flat, looks believable to me though.
great work... i have enjoyed watching the progress of this character.
You said you`re going to draw a real bump map when you get the time. Well, when you do, check out the fingernails and make sure they don`t have a visible thickness on the sides and at the cuticle. At the moment they look like stick on falsies!