3) Notice how I added the fingers starting from a curve at the line technique .Try keeping the proportions and the correct length of each one .About the folded hand, I added the second group of phalanx .

4) Now check how I did the last details and added some body and 3-D to the hands. I’m particularly happy about the claw .It came out very realistic with the third group of phalanx . Now remember I still add details to both hands before actually finish them. But that is a personal way and you prob need to find your own way to add those.